Smashing Pumpkins bring Greg Brady actor Barry Williams onstage for 'It's a Sunshine Day' at Lollapalooza aftershow

The Smashing Pumpkins brought Barry Williams — Greg Brady on The Brady Bunch — onstage at a Lollapalooza aftershow at Chicago's Riviera Theatre to perform the 1972 song 'It's a Sunshine Day,' written by Steve McCarthy. Williams sang with a four-piece backing vocal group. Billy Corgan had interviewed Williams for his podcast 'The Magnificent Others' in May at the Brady Bunch house. Rolling Stone reported the story on 30 July 2026.