What could be more all-American than Blues, Jazz, and Tap Dance? How about a little Rock and Roll! Little Rose and the Boston All-Stars bring you the swingingest porch in Somerville! Vocalist and tap dancer Rose Giovanetti has assembled an eclectic line-up of musicians featuring Roberto Cassan, accordion virtuoso; Josh Hilberman, formerly 'the greatest tap dancer in Somerville'; Theo Powers, rhythm guitar and Elvis-style vocals; Jason Davis, stand-up guy on the upright bass; Sir Cecil Rednellac, the 'Ray Charles of Boston,' on drums; and Somerville legends Kathy Partridge, on taps, and saxophonist Dick 'the poet' Lourie. Did we mention dancing in the street?