American vocal quartet known for backing up such singers as Perry Como, Vaughan Monroe, and Guy Mitchell. They also cut many jingles. The group that sang with Perry Como in the 1940s consisted of Helen Carroll, Ted Hanson, Art Lambert, and Bob Lange. In the 1950s, the members were DeLoris Randall (alto/soprano), who joined in 1953, Bob Lange (tenor), Art Lambert (baritone) and Loren Welch (baritone).