The Ritz Brothers
Source: Wikipedia
The Ritz Brothers were a comedy team who appeared in films, and as live performers from 1925 to the late 1960s.
The brothers had a large following, and some fans compare them to the Marx Brothers, but the Ritzes did not play contrasting characters like the Marxes did; the boisterous Ritzes frequently behaved identically, making it harder for audiences to tell them apart. The ringleader was always rubber-faced, mouthy Harry, with Jimmy and Al enthusiastically following his lead. They frequently broke into songs and dances during their feature comedies, and often did celebrity impersonations (among them Ted Lewis, Peter Lorre, Tony Martin, even Alice Faye and Katharine Hepburn).
Read more about The Brothers Ritz at Wikipedia or at the Internet Movie Database
Nearby you will also find Bob Hope, Fred Astaire, and many others.