John Summit’s Experts Only Festival returns to Randall’s Island Park on September 19–20, 2026, for its second edition. After a sold-out 2025 debut that drew more than 50,000 fans, the two-day event expands production across three stages while Summit curates a mix of house, bass, techno, and indie dance. Tickets are still on sale now, with the weekend expected to welcome another large crowd for sets from Summit himself (solo and as SUBJOHNICS with Subtronics), plus a stacked supporting bill. Here are five standout acts worth looking out for on this year’s Experts Only Festival lineup.
Rohaan
UK’s versatile producer Rohaan delivers boundary-pushing bass that fluidly moves between drum & bass, deep dubstep, grime, and experimental hybrids. His debut album Bleach earned UKF Artist and Album of the Year honors, with support from Four Tet, Fred again.., Jamie xx, and Zeds Dead. Expect dynamic, unpredictable sets full of pressure and texture that stand out on the festival’s bass-leaning slots.
LYNY
Chicago’s Alec Leinhauser has emerged as a key voice in modern bass and trap-leaning electronic music, known for distinctive sound design built largely from scratch. His sets bring inventive low-end pressure and festival-ready drops that stand out in a bass-heavy crowd. Expect clever vocal chops, unpredictable structures, and a playful yet hard-hitting energy that keeps the dancefloor locked in.
Partiboi69
Melbourne’s Partiboi69 brings chaotic, high-energy electro, techno, and “ghetto freak” vibes with a playful, larger-than-life persona. Known for infectious, unapologetic dancefloor tracks and visually distinctive live shows, he delivers sets full of attitude, rapid edits, and party-starting aggression. His presence adds an underground-to-festival crossover edge that thrives in outdoor environments.
GRiZ
GRiZ is a must-see after his return from hiatus, celebrated for his signature future-funk sound—sax-driven, soulful, and bass-heavy. His recent work, including the 2026 album Future Funk Volume 1, leans into heavier bass while maintaining the groovy, uplifting core that built his dedicated live following. Expect a full-band energy feel even in a festival slot, with improvisational flair and impactful drops that blend funk, soul, and serious low-end.
Jackie Hollander
The Bay Area-to-L.A. rising star has quickly become a tech-house and melodic house force. Her sets deliver hypnotic, bass-forward energy ideal for daytime-to-sunset slots and the festival’s more intimate or art-focused stages, full of rolling basslines and feel-good momentum.