Perfect for spring or lighter concerts, this 5-minute medley of rock's greatest hits is fun to sing. It includes Rock Around the Clock; Rockin' Robin; Jailhouse Rock and Shake, Rattle and Roll, seamlessly connected and carefully crafted for middle school voices. Available for 3-Part Mixed and 2-Part. VoiceTrax CD also available. Performance Time: Approx. 5:00 Available for 3-Part Mixed and 2-Part. VoiceTrax CD also available. Performance Time: Approx. 5:00 This page displays CD only.