Comedy team Dean Martin and Jerry Lewis in 1950.
Source: Reddit
Hey lady! It's Martin and Lewis. At one time, Jerry Lewis was considered a comedy genius in France. Dean Martin was his sauve, slightly boozing, crooning sidekick. The comedy duo met in 1945 and debuted their stage show at the Atlantic City's 500 Club - the following year. Before they became a super-group, Martin was a nightclub singer, while Lewis performed a comedy act that involved lip-synching to records. Upon joining forces, Martin and Lewis stayed as a team together for the next ten years. The audience is said to convulse with laughter as Lewis kept interrupting and heckling Martin while he tried to break into a song.
Martin and Lewis cranked out films and radio and TV appearances - before parting ways and taking their acts solo.