by Linda Ray
Sergio Mendoza y la Orkesta topped a bill of Latin-dance bands aimed at giving the fans a workout on the dance floor. Camilo Lara of the Mexican Institute of Sound and Gabriel Sullivan of Taraf de Tucson sat in, having played their own sets earlier in the evening. Gabrielle Giffords and her husband Mark Kelly enjoyed the show from the front of the stage. C. Elliott's photos follow.