sentences:  McNair's professional career began in music during the late 1950s, singing in the nightclub circuit.In 1958, McNair released her debut single "Till There Was You" from Coral Records which was a commercial success.McNair performed all across the world, touring with Nat King Cole and later appearing in his Broadway stage shows "I'm with You" and "The Merry World of Nat King Cole" in the early 1960s.