Vini "Mad Dog" Lopez (born in 1949) is an American drummer. Between 1968 and 1974 Lopez backed Bruce Springsteen in several bands, including Steel Mill and the E Street Band. He also played on Springsteen’s first two albums, Greetings from Asbury Park, N.J. and The Wild, the Innocent and the E Street Shuffle. After leaving the E Street Band, Lopez went on to play drums with numerous Jersey Shore bands, including The Lord Gunner Group.