Movie name?

Hello, first of all english is not my mother language so maybe some words are incorrect.
Some years ago I watched a movie about a group of friends going to a house to basically party. They also go to a club and there is a moment a strange, bizarre red character in disguise appears performing a show. They all are made uncomfortable, although It is just one scene and not an important part of the movie. I remember googleing at that time and the theatre show with that strange character actually exists but cant remember the name of the show or the movie