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The Twestival San Francisco was held on March 25, 2010 at Horizon Lounge to raise money for Concern Worldwide. Featured guests included Stroke 9 who is probably better known for their song "Little Black Back Pack" and Sioux City Kid and the Revolutionary Ramblers. There were even book signings by Brian Solis and Shel Israel. All photos: (cc) Kenneth Yeung -- www.thelettertwo.com.