Considered to be the largest underground hip-hop event in America, Scribble Jam kicks off at 9pm at Slim's. Come check out freestyle and emcee battles plus scratching, breakdancing, beatboxing and graffiti competitions. $16 gets you in the door. 333 11th St.

The Great Wall of Oakland heads back to downtown Oakland during the First Fridays Art Murmur gallery walk. Head over to Grand Ave, just west of Broadway to check out digital animation by Oakland-based media artist Victor Ingrassia from 8-10pm.

Dark Side of the Uke: Floyd's legenary album reimagined with ukuleles by the Tatamimats - complete with sonic noises, lasers and fog! Tickets are $6, show starts at 9pm the Knockout. 3223 Mission St.

Get your dance on at Pink for OM:Soul, with J Boogie (of Dubtronic Science), DJs Rich Medina and Sake One. 2925 16th St.

Photo from the Dark Side of the Uke flyer.