Rockabilly rhythms and the kinetic energy of early rock ‘n' roll collided with explosive results when American upstart Gene Vincent shimmied onto the scene in the mid-'50s. On his first hit, “Be-Bop-a-Lula,” his vocals combined curled-lip crooning, sharp intakes of breath, and exuberant screams. Vincent infused his music with pompadour-shaking vigor, welding nervy electric guitar to doo-wop harmonies on “Lotta Lovin',” laying a pumping bassline beneath honking sax and ticklish piano on “Pistol Packin' Mama,” and making the microphone shake with his visceral howls on “Cat Man.”