Because SFist is ready for simpler times, when perhaps the country wasn't shrill shades of read and blue, but rather a more velvety purple, we're quite excited about this weekend's Sing-a-Long Purple Rain in celebration of the film's 20th anniversary. Things get all Lake Minnetoka this Saturday at midnight, at the Bridge Theatre (3010 Geary at Blake, Inner Richmond). It's the last showing of the Midnight Mass movie series, a favorite of SFist Watches, and is hosted as usual by local sensation Peaches Christ. Bring a lighter and lacy, fingerless gloves.