The Rhythm Devils is a percussion-based rock band led by former Grateful Dead drummers Bill Kreutzmann and Mickey Hart.

Most Grateful Dead concerts featured an extended segment during the 2nd set of improvisational drumming and percussion by Hart and Kreutzmann who took over the stage as a duo (with occasional guests).

[3] The 2006 lineup of the Rhythm Devils featured drummers Kreutzmann, Hart, Phish bassist Mike Gordon, and guitarist Steve Kimock, with percussionist Sikiru Adepoju and vocalist Jen Durkin (formerly of Deep Banana Blackout).

It was announced on the Gathering of the Vibes website that the Rhythm Devils would perform there in 2010 with a lineup of Bill Kreutzmann, Mickey Hart, Sikiru Adepoju, guitarists Keller Williams and Davy Knowles (Back Door Slam) and bassist Andy Hess (The Black Crowes; Gov't Mule).

Band split, Kreutzmann and Hart continued to perform together with the Grateful Dead (with the duo being referred to as the Rhythm Devils) until 1995 and sporadically thereafter