According to the United Nations, over 38 million people on this planet are infected with HIV, the precursor to one of the most brutal, fatal and stigmatized diseases known to man. The third annual Sing-Out Against AIDS, hosted by the Pinellas Park-based AIDS Partnership, raises money for the organization's Mission Against Transmission program, which teaches the community to stop at-risk behaviors like unprotected sex and needle sharing, and offers free, confidential testing and counseling. BETTY, the girl-powered alternative rock band known for belting out the frenetic theme song on each episode of Showtime's The L Word, headlines. New Yorker Lori Michaels, several Orlando bands, and local acts including Providence, New Tribe, Mele, Jeremy Gloff and adorable folk-geek Lorna Bracewell round out the bill. Prize drawings offer a chance to win cash and other goodies (artwork, massages, tattoos and tarot card readings) while supporting a great cause. And, of course, there will be plenty of free condoms. Fri., Dec. 1., 7:30 p.m., Palladium Theater, St. Petersburg, $15, mypalladium.org.