Dave Chappelle's block party never really quite ended - apparently he's just taken it on the road, Manu Seth, a Berkeley engineer and designated after-party leader, said after the comedian's late show May 17 at Cobb's Comedy Club.

Chappelle asked the audience for ideas for ways to make his performance memorable. Seth's brainstorm got the thumbs-up: a walk.

The catch: The audience had to follow Seth wherever he led them, sans verbal cues. Chappelle would meet them at 2:35 a.m. and ride along on his Ducati. But when 2:35 arrived and Chappelle was nowhere to be seen, Seth decided to take the initiative and embark on a trot with about 40 fans down to Aquatic Park. Feeling as if they were the butt of a practical joke, the fans were starting to head back when Chappelle arrived on his motorcycle, announcing, "You left without me." So the party continued on that chilly stretch of waterfront, with Chappelle smoking and chatting up the mob.

Art-fair fever hit S.F. last week, and I'm still pondering the twisted, sculpted grotesques dreamed up by Brynda Glazier - part volcanic goo, part freak-show canine, part Jabba the Hutt - at the S.F. Fine Art Fair. Fifty24SF served up an antic installation (and, outside, an embellished van) by local graffiti artists MQ and Pez. Also bouncing off the walls: ArtPadSF, with its looks into the greatest hits of mostly local galleries. I ogled Truong Tran's big bird cage of hunky nudie-cuties in Mina Dresden's space, as well as Ben Venom's quilt o' metal T's and Erin M. Riley's tapestries depicting random acts of debauchery in Guerrero Gallery's crash pad. Get a room!

Crystal magic happens Sunday at the New Parish and Monday at Bottom of the Hill when New York's Asobi Seksu dares to dream in sparkling psych pop. So does band member Yuki Chikudate believe in the power of pretty minerals? "I don't know if I believe in it, but I don't not believe in it. I remember as a kid thinking my hands felt tingly when around crystals," she says. "What does that mean?"