Paul McCartney headlined Lollapalooza with what will surely become a historic 31-song setlist, mixing in Beatles cuts with his material in Wings as well as a nod to his collaboration with Chicago rapper Kanye West and Rihanna with a snippet of “FourFiveSeconds.”

The former Beatle was loose and conversational throughout, telling stories about Jimi Hendrix, Eric Clapton and of course, fellow Beatles bandmates George Harrison and John Lennon. Sir Paul even joked about the bleed from the nearby Perry’s Stage, which housed DJ’s like Dillon Francis and Kaskade, calling some of the softer acoustic numbers he was playing a “mashup” with the heavy bass. “I intended for this,” he joked, and later on said the band would start rocking to combat “whatever shit they’re playing.”

One of the surprises in McCartney’s show came when he invited Alabama Shakes’ Brittany Howard to sing and play guitar on “Get Back” in the encore. McCartney reference Alabama several times throughout the song and turned the song into a bit of a call-and-response between the two of them. Watch it above.

Elsewhere on the grounds, St. Paul & the Broken Bones attracted a large crowd to the Bud Light Stage, closing their set with a cover of Otis Redding’s “I’ve Been Loving You Too Long.” Father John Misty remarked that his “voice is gone” and struggled through some of the vocals to his songs, however Tillman met the struggles with his classic brand of self-deprecating humor, keeping the crowd engaged throughout.

During Tillman’s set, he joked, “Please, The War on Drugs, wherever you are, come out here and save me.” While the band didn’t immediately oblige, they did follow Tillman on the Palladia Stage, following up their late night performance at Chicago’s Metro with another energetic offering of tunes from their stellar Lost in the Dream.

Other highlights included Hot Chip playing a dancey version of Bruce Springsteen’s “Dancing in the Dark” which included a snippet of LCD Soundsystem’s “All My Friends.” Gary Clark Jr. previewed some new songs from his forthcoming effort, The Story of Sonny Boy Slim and Alabama Shakes proved worthy of opening for Paul McCartney with a particularly spirited hour-long set.

Lollapalooza continues today with headliner Metallica as well as Sturgill Simpson, Tame Impala and more.