We said E Street Band saxophonist Clarence Clemons knew how to pick 'em, and here's proof: Randi Fishenfeld, the 37-year-old criminal lawyer turned electric-violin player Clemons chose for his other group, Band of Faith. When Fishenfeld goes into her patented gypsy number on stage, she becomes possessed by the music. She goes crazy, and the club crowds go crazy with her. Besides fiddling with Band of Faith, she also plays with her own band, Blue Fire, which puts in appearances at O'Hara's in Fort Lauderdale and Hollywood and at the A Train in Delray Beach. It's a busy schedule, but that's exactly what she wants. "When I get all that energy back," she says, "it makes me want to go out and kiss everyone." Oh, if only she would.