Last Friday at 8: 11.m.: A few months ago, in a van, he was from Craigslister, Glen Calub,.k.a.Karaoke ny Kravitz, Karaoke shark, provides air guitar backup for Karaoke scene regular Ash Townsend as he screams Alice in Chains lyrics.Tonight's party is at the corner of Indiana and Dura Street.Away from neighbors who may be offended by the karaoke version "mom says Knock You Down" or "Who Will Stop the Rain?"He uses a power inverter connected to the car's battery to run PA and lyric-Screen-playing videoThe few attendees eager for a microphone braved the cold fog of the San Francisco summer night, showing a degree of enthusiasm, which thankfully was not evaluated by the quality of the notes sung.After more than a decade of karaoke nights at clubs around the city, Kravitz decided it was time to expand the party beyond the bar walls.His followers seem to agree."I just have to tell them where I am and they will follow me," he said ."./Template/type/Life/page/City show 20.