Allen and Rossi were an American comedy duo active in the 1960s, composed of Marty Allen and Steve Rossi. Known for their blend of music and comedy, the pair often incorporated popular songs into their routines, with Rossi as the straight man and singer and Allen providing comedic commentary. They are best remembered for their frequent appearances on "The Ed Sullivan Show", including the historic episode featuring The Beatles' American television debut. Their signature act, "Hello Dere", became a catchphrase in American pop culture.