(Pro Vocal). Whether you're a karaoke singer or preparing for an audition, the Pro Vocal series is for you. Each edition contains the lyrics, melody, and chord symbols for eight classic songs. The audio contains demos for listening and separate backing tracks so you can sing along. Perfect for home rehearsal, parties, auditions, corporate events, and gigs without a backup band. This volume includes 7 memorable songs from the hit musical, including: Alone at the Drive-In Movie * Beauty School Dropout * Grease * Greased Lightnin' * Rock 'N' Roll Party Queen * Sandy * Summer Nights.