DENNIS DAY was born Owen Patrick Eugene McNulty, was an American singer and radio, television and film personality of Irish descent.
Day appeared for the first time on Jack Benny's radio show on October 8, 1939, taking the place of another famed tenor, Kenny Baker. He remained associated with Benny's radio and television programs until Benny's death in 1974. He was introduced (with actress Verna Felton playing his mother) as a young (nineteen-year-old), naive boy singer – a character he kept through his whole career. His first song was "Goodnight My Beautiful".