It was the feast of St. Valentine, 1929, when seven of Bugs Moran’s men entered a garage in Chicago’s North Side dressed in their Sunday best. No one’s sure why they were there, but 70 rounds from a tommy gun later, all seven were dead in a plot presumably orchestrated by rival mobster Al Capone. Only the dog survived. In honor of this least romantic of Valentine’s Day gestures, the High Dive is hosting the Great Valentine’s Day Massacre. It’s a musical free-for-all presented by the self-described “sweaty music dorks” and promoters NadaMucho.com. The massacre pits Nada Mucho’s favorite indie acts—Partman Parthorse heading the bill—against solo buttrock star KEG and his rockers of the metal-inspired ilk, led by Megasapien. The stage will be split with the hipsters and headbangers facing off for your love and attention. A little heartbreak-souvenir bashing is also planned, so bring that adorable photo of you and your ex looking oh-so-in-love and decide: Is it emotive sympathy you need to heal the wounds, or power chords? High Dive, 513 N. 36th St., 632-0212, www.highdiveseattle.com. $5 adv/$7 door. 8 p.m. LAURA ONSTOT

Thu., Feb. 14, 8 p.m., 2008