What: Tijuana's Nortec Collective blends traditional northern Mexican beats with electronica. Why: Rosario Dawson and Wilmer Valderamma rocked out to them at the Voto Latino Party during the Democratic National Convention. Bonus: Nortec's concert is the nightcap on the Museo de las Americas' annual fundraising gala, RÃ³jole. Gala tickets include a dinner, live and silent art auctions, and a post-concert party with Nortec. Details: Fri, gala 6 p.m., concert 9 p.m. Exdo Event Center, 1399 35th St. $30, $150. For more information, call 303-571-4401 ext. 25 or visit www.museo.org .