Once more, with feeling.PITCH INPerfect HarmonyWhat: Hormone- and melody-crazed teen warblers battle it out a cappella (Rihanna, Europe, Cyndi Lauper) in preparation for their debut on MTV3. Why: A gut-busting monologue from talent manager and brazen camel toe advocate Kiki Tune and Herzegovinian rants on the Sex Pistols, tractor accidents, and goat loving.When: Thru Nov. 13.Where: The Acorn Theatre, 410 W. 42nd St., at Ninth Ave. (212-714-2442). Tickets ($38-$45) online at broadwayoffers.com with promo code DAILYCANDY.SIDLE UPRouge et BlancWhat: A 1940s-inspired French Vietnamese tavern (dropped silk ceiling, distressed paint, cozy two-tops) run by a Francophile sommelier offers bone marrow, frog’s legs, and late-night banh mi at the bar, and fifteen painstakingly selected wines by the glass.Why: For an innocent drink and piquant conversation with your long lost bosom buddy, darling ingenue, or wily lothario.When: Mon.-Sat., 6 p.m.-midnight.Where: 48 MacDougal St., b/t Houston & Prince Sts. (212-260-5757).SLURPThe John Dory Oyster Bar OpensWhat: Ken Friedman’s salute to bivalves has Jules Verne touches (patina-destined copper surfaces, globular fish-filled sconces), wine on tap, and a drink menu devised by Sasha Petraske.Why: Reserve the twelve-seat chef’s table to admire the works of April Bloomfield and LIC artist Michael Davis (his crustacean screen-printed tiles practically glow). When: Opens Fri. afternoon. Daily, noon-2 a.m.Where: 1196 Broadway, at 29th St. (212-792-9000).GEEK OUTGadgets and Gizmos for TechiesWhat: Our definitive holiday gift guide to the latest and greatest, including a 3-D camcorder, remote-operated lantern, wooden watch, and retro iPhone dock.Why: Get your hands on hi-fi, lo-fi, and everything in between.When: Before you crash.Where: Online at dailycandy.com.SHOPWhat Goes Around Comes Around Sample and Stock SaleWhat: Vintage hats, scarves, and belts (were $58-$98, now $10-$20), plus kickin’ boots (were $148-$298, now $30).Why: In the mood for something new? Take 50 percent off the current fall/winter collection for women and men.When: Today-Sat., 11 a.m.-8 p.m.; Sun., noon-7 p.m.Where: 351 W. Broadway, b/t Broome & Grand Sts. (212-343-1225).ESCORT13P Fall FormalWhat: Slap on a corsage and slip into your polyester best for the Obie Award-winning thirteen-person collective’s spiked punch extravaganza. Why: Electric slide to tracks by DJs Jo Lampert and Theo Stockman, knowing your admission fee will benefit talented playwrights (Young Jean Lee, Sarah Ruhl, and Erin Courtney).When: Mon., 7-10 p.m.Where: 80 Greenwich St., at Rector St. Tickets ($50) online at ovationtix.com.EXPLORELu Magnus OpensWhat: Visit the new LES art laboratory and salon to discover up-and-coming artists from multiple disciplines (film, music, dance, fashion, and food). Why: Taking a note from Sonic Youth, French painter Agathe de Bailliencourt will blow your mind with abstract florescent bursts in her Expressway to Your Skull exhibit (thru Dec. 18). When: Opening reception, Fri., 9-11 p.m. Gallery hours, Wed.-Sun., noon-6 p.m.Where: 55 Hester St., at Essex St. (212-677-6555).Photo: Jim Baldassare Up to 55% off Felix ReyCure wardrobe boredom with a glam handbag from Felix Rey at up to 55% off. While you’re at it, prevent holiday blues by delving into Swirl’s first-ever gift sale.