King of Cool who gained prominence as the on-set partner of Jerry Lewis. He was a crooner and a member of the Rat Pack.
After dropping out of high school, he worked as a bootleg liquor delivery boy, speakeasy croupier, blackjack dealer, boxer, and steel mill worker.
In 2006, his duet with Martina McBride, "Baby, It's Cold Outside," reached #7 on the R&R AC chart.
His uncle was comedian Leonard Barr. He lost custody of his children, Stephen Craig Martin, Claudia Dean Martin, and Barbara Gail Martin, after divorcing their mother, Elizabeth Anne McDonald.
He starred with Frank Sinatra in the 1958 drama Some Came Running.