The Smashing Pumpkins brought actor Barry Williams, best known as Greg Brady in *The Brady Bunch*, onstage for a performance of “It’s a Sunshine Day”. The appearance paired the rock band with a song closely associated with the 1970s television family, creating an unexpected nostalgia-driven moment for the audience.

Williams joined the group for the song, which was performed by *The Brady Bunch* cast and featured in the series. The report centres on video of the guest appearance; the supplied article text does not provide further details such as the venue, date or wider setlist.