Bill Kelliher




Bill Kelliher is a guitarist and a founding member of the Grammy award-winning, critically acclaimed heavy rock band Mastodon. With influences ranging from metal to prog to punk, Bill has developed a truly unique sound and style that has helped deliver three consecutive top 10 debuts on the Billboard Top 200, including Emperor of Sand, which hit #1 on the Billboard Top Album Sales chart. Together with Mastodon, he has contributed music to soundtracks for Game of Thrones, Bill & Ted Face the Music, and DC’s Comics DARK KNIGHTS: DEATH METAL to name a few. In addition to the recording accolades, the band has a strong touring history having played sold-out shows and headlined festivals across the globe.

“Helix controls my amps, pedals, sounds and vibes on stage and in the studio, there’s nothing Helix can't do”




Helix™ is a new kind of guitar floor-based processor: it’s not only a tour-grade multi-effect pedal that sounds and feels authentic, it's also the most comprehensive master controller for guitar systems ever built.