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Emerging from New Jersey’s vibrant hardcore punk scene, Gel carved out a distinctive place in modern hardcore during their seven-year run from 2018 to 2025. Formed as a side project of the powerviolence band Sick Shit, Gel pursued a more traditional hardcore punk sound while maintaining the speed, aggression, and directness that defined their music.
The band grew from the musical relationships of Matthew Bobko, Zach Miller, Sami Kaiser, and Anthony Webster, with Madison “Maddi” Nave later joining on guitar and Alex Salter eventually taking over on drums. Gel’s catalog included the studio album Only Constant, three EPs, a demo, a promotional tape, and the Shock Therapy split with Cold Brats.
Huw Baines of NME credited Gel with helping shape the sound of hardcore in 2023. The band also became closely associated with the unofficial slogan “hardcore for the freaks,” an idea that reflected both the intensity of their music and their emphasis on making the hardcore scene more welcoming to people who had often felt pushed to its edges.
Gel’s origins can be traced to the New Jersey powerviolence band Sick Shit, which included Bobko, Miller, Kaiser, and, later, Webster. When Gel began in 2018, the musicians used the new project to explore a more traditional hardcore punk direction rather than simply repeating Sick Shit’s powerviolence approach.
The group quickly built a reputation through relentless live performances and a sound that mixed hardcore punk with elements of post-punk and D-beat. One of the band’s defining early moments came on September 10, 2022, when Gel played a guerrilla-style show in the parking lot of a Sonic Drive-In in Hainesport, New Jersey. The performance was filmed by hate5six and went viral, helping introduce the band to a much larger audience.
Gel released their debut studio album, Only Constant, in 2023. The album drew widespread critical attention for its mix of raw hardcore energy, emotional vulnerability, and themes of recovery, change, resilience, and self-improvement.
The band followed with the five-song Persona EP in 2024 after signing with Blue Grape Music. The release showed a broader production style while retaining the aggressive sound that had made Gel one of the most talked-about hardcore bands of the early 2020s.
Gel announced their breakup on March 19, 2025, after previously parting ways with guitarist Anthony Webster. In their statement, the remaining members made a series of serious allegations against Webster involving band finances, private images, and conduct on the road, saying the situation had caused irreparable damage to the group.
The allegations were contested. In September 2025, Webster released his own statement denying that he had stolen money and disputing other claims made by his former bandmates. Gel had already ended by that point, canceling planned appearances that included tours with Spiritbox, Volbeat, and Anxious as well as scheduled Coachella performances.
Sami Kaiser
Sami Kaiser served as Gel’s vocalist from the band’s formation in 2018 until its dissolution in 2025, providing much of the emotional and lyrical core that defined the group’s identity. Kaiser’s vocal style combined traditional hardcore aggression with an unusually personal approach to writing, allowing Gel’s songs to function both as mosh-pit anthems and as expressions of vulnerability, frustration, and resilience.
Kaiser’s lyrics on Only Constant dealt directly with personal struggle, recovery from alcoholism, self-improvement, and the challenge of learning healthier ways to process negative emotions. The record balanced anger and hope rather than presenting hardcore exclusively as an outlet for rage. That emotional tension became one of Gel’s defining characteristics, allowing the songs to sound confrontational without losing the sense that the people behind them were working toward something healthier.
Kaiser described the album as being about trying to live a happier and healthier life while letting go of self-destructive tendencies. That perspective helped give Gel a lyrical identity that matched the physical intensity of the music without reducing the songs to aggression alone.
Beyond their role as vocalist, Kaiser became an important voice for inclusivity within the hardcore scene. Kaiser and guitarist Maddi Nave both publicly identified as nonbinary and used they/them pronouns, and Gel frequently emphasized the importance of making hardcore welcoming to people who did not fit its traditional image.
That philosophy became closely connected to the band’s “hardcore for the freaks” identity. Kaiser’s presence and writing helped Gel bridge the raw force of traditional hardcore with contemporary discussions about mental health, identity, community, and personal growth.
Matthew Bobko
Matthew Bobko served as Gel’s bassist from 2018 through 2025, providing the rhythmic foundation that anchored the band’s fast, abrasive hardcore sound. Before Gel, Bobko had been part of Sick Shit, where he was one of the musicians whose earlier work helped establish the relationships that eventually led to the new band.
Bobko’s move into the bass role with Gel gave the group a heavy low-end presence that supported both the breakneck speed of their shortest songs and the more dynamic material that appeared as the band developed. His playing rarely called attention to itself at the expense of the song, instead reinforcing the momentum created by the guitars and drums. That approach was especially important in a band built around short arrangements, sudden rhythmic changes, and songs that often had to establish their entire identity in less than two minutes.
Throughout Gel’s career, Bobko’s bass work evolved alongside the band’s sound, from the early demo and self-titled EP through Violent Closure, Only Constant, and Persona. His longtime connection with Kaiser and original drummer Zach Miller also contributed to the tight musical chemistry that characterized Gel’s earliest recordings and live performances.
Bobko remained with Gel through the band’s final period with drummer Alex Salter. By the time Gel dissolved in 2025, he had been one of the group’s constants from its formation through its final shows.
Madison “Maddi” Nave
Madison “Maddi” Nave joined Gel on guitar in 2021 and became an important part of the lineup during the band’s rise in the early 2020s. Nave’s arrival expanded the guitar sound and added another musical voice as Gel moved from their early releases toward the period that produced Only Constant and Persona.
Nave’s guitar work contributed significantly to Gel’s combination of traditional hardcore aggression and more varied textures. Alongside Anthony Webster, Nave helped create gritty riffing that drew comparisons to classic 1980s hardcore while still sounding connected to the contemporary scene. Their playing became part of the sound heard on Only Constant and later Persona, the releases that brought Gel their widest critical attention.
Nave’s playing could move between blunt-force rhythm work and more textured passages, helping Gel balance aggression with dynamics and occasional melodic detail. That flexibility became increasingly noticeable as the band’s songwriting grew more expansive.
As a nonbinary musician, Nave also spoke publicly about changes within the hardcore community and the importance of bands featuring people who did not fit the genre’s historically dominant image. Nave argued that simply allowing more kinds of musicians to participate on equal footing could help build a more accepting scene.
That outlook fit naturally with Gel’s broader philosophy. Nave remained with the band through its final lineup and dissolution in 2025.
Alex Salter
Alex Salter joined Gel as drummer in 2023, replacing founding drummer Zach Miller during a period when the band was gaining international momentum. Salter stepped into an established sound while Gel was touring heavily and building on the attention generated by Only Constant.
His drumming maintained the force and speed that had always driven Gel while bringing his own feel to the rhythm section. Salter entered a band whose live reputation had already become central to its identity, so his ability to preserve that intensity was crucial. He became part of the lineup that recorded the band’s 2024 Persona EP, a five-song release that marked another step in Gel’s musical development.
Persona was released on August 16, 2024, through Blue Grape Music and was produced and engineered by Jon Markson. The EP drew inspiration from Carl Jung’s concept of the shadow self and pushed Gel toward a somewhat larger and more detailed studio sound without abandoning the aggression of their earlier work.
Salter’s time in Gel was relatively brief compared with the founding members, but it coincided with one of the band’s most visible periods. He remained with the group through its final months and the cancellation of major touring and festival commitments following the March 2025 breakup.
Zach Miller
Zach Miller served as Gel’s original drummer from the band’s formation in 2018 until 2023. His background in Sick Shit gave him an existing musical connection with several of the musicians who formed Gel, and his drumming became one of the defining elements of the band’s early sound.
Miller brought the speed and precision needed for Gel’s short, explosive songs while still allowing the band to develop groove and dynamics. His playing can be heard across the group’s early demo material, the self-titled EP, Violent Closure, the Shock Therapy split, and Only Constant. His years with the band covered the period in which Gel moved from a side project into a nationally recognized hardcore act, making his drumming inseparable from the sound that first attracted the band’s audience.
Miller also played an important technical role in Gel’s recordings. Only Constant was engineered by Miller and Trish Quigley at Landmine Studios in Ewing, New Jersey, with Miller also handling the mix.
That combination of performer and engineer gave Miller a major role in shaping how Gel’s live intensity translated to record. His work helped preserve the rawness of the band’s performances while giving the recordings enough clarity for the riffs, bass, vocals, and rhythmic details to remain distinct.
Miller left Gel in 2023, with Alex Salter taking over on drums. His departure ended the original rhythm-section lineup, but his contributions remained central to the records that established Gel’s reputation.
Anthony Webster
Anthony Webster served as guitarist for Gel from the band’s formation in 2018 until his departure in 2024. Before Gel, Webster had been involved with Sick Shit and was part of the group of musicians whose earlier work eventually led to the formation of the new hardcore project.
Webster’s guitar playing was integral to Gel’s sound across the band’s early and middle periods. His work appeared on the demo, the self-titled EP, Violent Closure, Shock Therapy, Only Constant, and Persona. He was also one of the members most frequently involved in interviews during Gel’s rise, discussing the band’s writing, touring philosophy, and desire to keep hardcore fun, direct, and accessible to people outside the genre’s traditional circles.
Alongside Maddi Nave, Webster helped build the guitar attack that defined Gel’s most widely heard material. The pair combined blunt hardcore riffing with influences that reached back to 1980s bands such as SSD and Negative Approach while still leaving room for the post-punk and D-beat elements that distinguished Gel from many of their contemporaries.
Webster was also heavily involved in Gel’s early public identity and discussed the band’s approach in numerous interviews. He helped organize the 2022 Sonic Drive-In parking-lot performance, later recalling the satisfaction of getting hundreds of hardcore fans into an unconventional space without the show being shut down.
Gel and Webster separated in 2024 without immediately explaining the change publicly. When the band announced its breakup in March 2025, the remaining members accused Webster of serious financial and personal misconduct and said the situation had made continuing Gel impossible.
Those claims should be understood as allegations rather than established findings. In September 2025, Webster issued a public response denying that he had stolen band money and disputing other parts of the former members’ account. The disagreement remained public after Gel’s dissolution and became an unfortunate final chapter in the history of a band that had risen rapidly through the modern hardcore scene.
Gel Studio Albums
Only Constant (2023)
Gel EPs
Gel (2019)
Violent Closure (2021)
Persona (2024)
Gel Split Releases
Shock Therapy with Cold Brats (2022)
Gel Demos And Promo Releases
Demo 2018 (2018)
HC for the Freaks / Promo Tape (2019)
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Updated October 9, 2026
Complete List Of Gel Band Members article published on ClassicRockHistory.com © 2026



























