The Roots let Lenny Kravitz — and several other famous friends — rule ahead of the Grammys.
Kravitz was among the artists who joined the band Saturday for the third and final night of its 10th annual pre-Grammy jam session at the Hotel Cafe in Hollywood.
The rocker-actor grabbed his guitar and performed such songs as "Are You Gonna Go My Way" and "I Want To Get Away" with the massive hip-hop band.
Lenny Kravitz performs onstage during the 2016 MusiCares Person of the Year honoring Lionel Richie at the Los Angeles Convention Center on February 13, 2016 in Los Angeles, (Getty Images)
"You think you can work with me?" Kravitz asked Roots' drummer Questlove before they launched into his tune, "Let Love Rule."
Other musicians who joined the group Saturday for the invite-only, freewheeling concert included George Clinton and Bilal. The revelry was briefly interrupted when police apprehended a man at the venue.
John Legend, Nelly, Tori Kelly and Leon Bridges were among the artists who teamed up with the band for Thursday and Friday jam sessions.
The Roots used the event to promote their playlist on the new Serato Pyro music player app. The software acts as a virtual DJ, seamlessly weaving together music from streaming services and MP3 files.