Rock icon Keith Emerson (center) of Emerson, Lake and Palmer, poses after a Les Mercy show in Santa Monica. The special guest showed up, bought drinks and never left. Come see what all the fuss is about. For one night only the Maverick Saloon brings Rock back to the Valley. Hometown favorites Les Mercy will be opening up for Primal Tribe at 9 p.m. on Friday. For info Myspace.com/lesmercy