So often when Erin Driscoll sings, the point of opening her pert little mouth isn’t to sound good. In Hairspray, as the blonde social climber Amber Von Tussle, she didn’t so much sing as sneer—fabulously. But tonight at her cabaret, Driscoll wants you to actually, really, genuinely like her. And her voice, too. “Get Happy! The Songs of Harold Arlen” is what she’s named the show, which will feature American classics like “Over the Rainbow,” “Stormy Weather,” and “I’ve Got the World on a String.” Read more >>> (Rebecca J. Ritzel)

Driscoll performs tonight at 8 p.m. at Signature Theatre, 4200 Campbell Ave., Arlington. $24 plus fees. signature-theatre.org. (703) 820-9771.

EAT THIS

Mike Isabella is teaming up with reservation system CityEats for a one-day Graffiato food truck spectacle. Sadly, there will be no menu and no cooking on board, but Isabella will be handing out free samples and giving prizes to fans who can identify the ingredients in his dishes. The prizes will range from lunch at Graffiato to autographed copies of the chef’s new cookbook to iPods. Get the full truck stop schedule (and some insight into whether Isabella might ever open a real food truck) here. (Jessica Sidman)

OH AND ALSO

Sponsored by the Embassy of Ecuador, the annual Ecuadorian Film Showcase begins tonight in Rosslyn. All films have English subtitles, and admission is wonderfully free. Tonight’s film: Con Mi Corazón en Yambo. 7 p.m. at the Rosslyn Spectrum Theater, 1611 N. Kent St., Arlington.

Canadian electropoppers Junior Boys spin a DJ set at everyone’s favorite subterranean nightclub tonight. Brian Billion, DJ extraordinaire and creator of the Minor Treat ice cream truck, is in the opening slot. 10 p.m. at U Street Music Hall, 1115 U St. NW. $10.

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