To celebrate the 25th anniversary of one of history's greatest pop albums, and the extravagantly, hilariously whacky and over the top film it inspired (the apotheosis of both the purple one's genius and self caricature), we invite you to don something lacey and ruffled and come get your Prince on. We'll have lyric subtitles, but you know the words already. Joy Dragland of Brooklyn's live disco orchestra Escort certainly does; Purple Rain was the first cassette she ever owned. Dragland and others from Escort will lead the sing-along, after the band puts everyone in the mood with an opening set. (Note: The film is Rated R and admission of anyone under 17 will require an accompanying parent or guardian. The whole evening will feature scenes of extreme sexiness throughout.)

Columbia students and CAAL members can get reserved seats by following the RSVP links in the e-newsletters.