Photos: Inside The Roots' Intimate, Star-Studded 'Grammy Jam' Session

For the past decade, the winner for grooviest Grammy Week event has gone to The Roots, whose annual Grammy Jam is always a who's who of superstars, up and comers and revered backing players. You never know who you're going to see at this surprise guest-driven stage soiree typically held a couple of days before the awards shows. This year’s bash, also the launch party for Serato Pyro, the DJ software's new app, was no exception.

We waited it out next door at venerable dive The Burgundy Room and our patience finally paid off. Finally entering the promised land around midnight, it was all worth it, when the funkadelic splendor of none other than P-Funk king George Clinton and some of his all-stars filled the room. And yes, the singer, looking dapper (and dread-less) in a three piece suit and spiffy hat, turned the mutha out, driven by the solid and steady beats of drummer, Fallon skit-star and social media master Questlove, who snapped a shot of the crowd from the stage:

Tough act to follow for sure, but another funk rocker was up for the challenge: Lenny Kravitz, who tore through three of his hits, "Are You Gonna Go My Way," "Fly Away" and a jazzy re-arrangement of "Let Love Rule" that saw the entire room singing along, waving hands, and feeling it. Though the hit is from 1989, it was the perfect song choice, for both Grammy and Valentine's Day weekend. Forget about swag, or fancy fashion, or free booze; The Roots once again proved genre-blending good music vibes are all a great party ever needs.

Would you like to fly away with Lenny?

And here's George Clinton:

Over the course of the Grammy Jam's three-night stand, different musicians showed up to perform, depending on the night.

Here's Kehlani singing "My Way."

Tinashe made an appearance, too:

Aleesia Care has a beautiful voice:

Nelly and Jeremih:

And John Legend showed up, too, to grace the people with this beautiful Bill Withers cover: