Cosmic Jerry Band is a high-energy Grateful Dead inspired quartet comprised of Ty Mares on guitar/vocals, John “Jelly Roll” Nemeth on bass/vocals, Billy Siegel on keys/vocals, and Dan Donovan on drums/percussion. They blend decades' worth of experience with a passion for present-moment jam and a “no limits” approach to playing, embracing the “cosmic” element at the heart of their project.

CJB members have shared the stage with musicians from such notable acts as Jerry Garcia Band, Talking Heads, RatDog, Hot Tuna, Parliament Funkadelic, The Fugees, Jefferson Starship, Spin Doctors, Dramarama, Dark Star Orchestra, New Riders of the Purple Sage, KC and The Sunshine Band, and The John Kadlecik Band.

While drawing from the catalog of the Grateful Dead and all incarnations of Jerry Garcia's solo projects, plus gems from such bands as Phish, The Velvet Underground, Talking Heads, and more, CJB has become known for their unique setlists. When Cosmic Jerry Band hits the stage, vibrations rise, faces melt, and minds are blown, as what transpires is truly cosmic.