-- The 2007 Bay Area Rhythm Exchange: Stepology (which we can only hope is very much like "Vibeology") presents tap stars Channing Cook-Holmes (Riverdance, Gangs of New York, Bojangles), John Kloss (Tap Heat), Deborah Mitchell (The Cotton Club, Black and Blue), Dormeshia Sumbry-Edwards (Bring in 'da Noise, Bring in 'da Funk, Bamboozled), Sam Weber (Mr. Rogers’ Neighborhood). 8 p.m., Herbst Theatre (SF War Memorial and Performing Arts Center), 401 Van Ness; $19-$22.

-- Chrome: Head over to le Tenderloin for le punk rock faggotry. DJ Dirty Knees spins aforementioned punk as well as electro and alterna beats. Music starts at 9 p.m. at The Gangway, 841 Larkin (at Polk); $3.

-- H.M.S. Pinafore: Gilbert and Sullivan's sometimes brilliant/sometimes has you reaching for the Head-On. Curtain goes up at 8 p.m at Yerba Buena Center for the Arts Theater, 700 Howard (at Third Street); $11-$44.

-- Drag King Contest: Go here to read more about it.

Channing Cook-Holmes image: Stepology