PHOTOGRAPHY: The group exhibition, ReGeneration, will feature eight artists who occupy either side of the “generation gap.” Each of the veteran photographers from the Baby Boomer generation have been paired up with an up-and-coming twenty-something photographer to explore the potential for artistic dialogue between the two groups. (5:30 to 9 p.m., a.Muse Gallery and Meeting Place, 614 Alabama Street)

CLUB: Bootie SF celebrates its 8-year anniversary tonight, featuring a multimedia DJ set with live singers, dance performances, drag queens, mashup videos, go-go dancers, an audience sing-along, and tons of balloons and confetti, and more. Additionally, first 500 people through the door get a free 20-track Bootie SF 8-Year Anniversary edition mashup CD. (9 p.m. to 2 a.m., DNA Lounge, 375 11th Street)

MUSIC: San Francisco Renaissance Voices presents the return of its Opera Early & Ancient mini-series, featuring Cupid & Death by Matthew Locke (1621-1677) based on the libretto by Christopher Gibbons, in which Cupid and Death spend the weekend "at the same country inn where they accidentally exchange arrows." Naturally, pandemonium ensues. (7:30 to 9 p.m., Seventh Avenue Performances, 1329 Seventh Avenue)