Shows This Weekend: TV on the Radio in Central Park, Hangover-Obliterating Techno, and Alcoholic-Chef Competitions

Noted Björk collaborators the Dirty Projectors join 2008 Pazz & Jop winners TV on the Radio in Central Park Friday night to benefit this year's free Central Park SummerStage slate.

Beware of projectile vomiting at Webster Hall; Chromeo's Dave 1 is DJing tonight.

Trumpet virtuoso Ralph Alessi plays a pair of intimate, confoundingly affordable sets at the Cornelia Street Café.

Last call for shambolic pranksters Art Brut's Mercury Lounge residency.

Saturday

Yo-Yo Ma and the Silk Road Ensemble perform at Lincoln Center. There's a sliver of a chance that stand-bys will be admitted.

Nasty lyrics, nasty beats-- Electro trio Menya play the Cake Shop.

Sunday

There's only way to get rid of that hangover: techno. On the beach, or on the roof.

Rock 'n' roll cornerstone Little Richard returns to B.B. King's.

Representatives from the Food Network, Brooklyn Brewery and Crif Dogs descend on the Bell House for the Brooklyn Beer Experiment, a competition for amateur brewers and alcoholic chefs.