Former Prince drummer Bobby Z critical after heart attack

Robert B. Rivkin, known in the music world as Bobby Z, is in critical condition after suffering a massive heart attack last weekend. The drummer played with Prince's band from 1978 to 1986.According to the Minneapolis Star-Tribune, Rivkin is currently in an unnamed Twin Cities hospital. His son, Adam, told the paper, "He had three arteries that were blocked, and the doctors on Sunday night