Warming up for their Bonnaroo 2016 headlining set this weekend, Pearl Jam treated a tiny crowd of less than 200 to an unannounced show at Jack White’s Third Man Records in Nashville on Thursday night (June 9). White even jumped on stage to jam with them on one song.

PJ was in fine form as it smashed through an eclectic, nine-song, hour-long set packed with rarities like the '90s deep cuts “Hard to Imagine” and “Let Me Sleep” alongside album favorites including 2013’s “Mind Your Manners” and “Deep” from 1991’s Ten. The appreciative audience — a mix of ultra-lucky fan club members, celebs including Keith Urban, and friends and family — kicked into overdrive when frontman Eddie Vedder welcomed Jack White to the stage to help rock an extended version of the unreleased Pearl Jam song “Of the Earth.” White’s guitar work bent the sprawling, muscular tune into new shapes, heavier than ever on the groove.

Urban tweeted that Pearl Jam was "majestic, epic and raw! And are playing at a whole other level!," adding, "PS, Jack White... you're just pure bad ass!"

The Third Man team recorded the incredibly intimate show directly to acetate (a precursor to vinyl), but no details on when or if the show recording will be released have been announced. 

Before the band plays Boston’s Fenway Park and Chicago’s Wrigley Field in August, Pearl Jam will next head to nearby Manchester, Tenn. to headline Bonnaroo on Saturday (June 11).

Below, check out the photos from the already in-progress Bonnaroo 2016.