When did 4 freshman become famous?

The term "4 Freshmen" typically refers to the vocal group The Four Freshmen, who gained fame in the late 1940s and 1950s. They became well-known for their innovative harmonies and unique blend of jazz and Pop Music. Their first major hit was "It's a Blue World" in 1952, which helped establish their popularity in the music scene. The group's influence can still be seen in contemporary vocal ensembles today.