“Billy shared that the Pumpkins had confirmed headlining Lollapalooza. He said sweetly, ‘If you wanna join us for a song, please do’”: Melissa Auf der Maur lifts the veil on her surprise appearance at Lollapalooza with the Smashing Pumpkins

Auf der Maur ascended to the Lollapalooza stage with her former band in a move that harked directly back to the ’90s