No mere Elvis impersonator, El Vez, the Mexican Elvis, blends satire and social commentary, turning “Suspicious Minds” into “Immigration Time,” and “It’s Now or Never” into a call for a gang truce. Born Robert Lopez, this one-time punk rocker and folk art curator’s stage show wonderfully captures his love for kings of both the Memphis and Aztec variety. With the bossa-nova pop of The Legendary Jim Ruiz Group and locals Blast Off Country Style at 9 p.m. at the Black Cat, 1831 14th St. NW. $8. (202) 667-7960. (Steve Kiviat)