Louise Tobin

Mary Louise Tobin (born November 11, 1918) is an American jazz singer. Tobin was born in Aubrey, Texas, but raised in Denton, Texas. She appeared with Benny Goodman, Bobby Hackett, Will Bradley, and Jack Jenney. Tobin introduced "I Didn't Know What Time It Was" with Benny Goodman’s band in 1939. 
Her biggest hit with Goodman was "There'll Be Some Changes Made", which was number two on the "Hit Parade" in 1941 for 15 weeks.