The Hi-Lo's were a vocal quartet formed in 1953, who achieved their greatest fame in the late 1950s and 1960s. The group's name is a reference to their extreme vocal and physical ranges (Bob Strasen and Bob Morse were tall, Gene Puerling and Clark Burroughs were short).
The group consisted of Gene Puerling (bass-baritone or fourth voice, arranger, leader, and occasional soloist), Bob Strasen (baritone or third voice), Bob Morse (baritone or second voice and frequent soloist) and Clark Burroughs (tenor or first voice/lead). In 1959, Bob Strasen left the group after he began losing his voice to unknown causes. After Strasen's departure, Bob Morse switched to the Baritone or third part, and tenor Don Shelton sang the second part.
They were occasionally supported by Frank Sinatra. Clare Fischer was their pianist for years and occasionally wrote arrangements for the group.
