Baby, It's Cold Outside by Don Cornell and Laura Leslie with Sammy Kaye and His Orch.

First recording by Ella Fitzgerald and Louis Jordan and His Tympany Five (February 28, 1949)

First theatrical release by Ricardo Montalbán and Esther Williams (June 9, 1949)

First release by Margaret Whiting & Johnny Mercer - Paul Weston's Orchestra (April 1949)