Miley Cyrus: Mustache for Jimmy Fallon!

Miley Cyrus wears a fake mustache while making an appearance on Late Night with Jimmy Fallon on Thursday (March 3) in New York.

The 18-year-old entertainer, wearing a diamond Demistache necklace, chatted with Jimmy to promote her guest appearance on Saturday Night Live this weekend.

Miley will host an episode of the sketch comedy show with musical guest The Strokes.

Earlier this week, promos for the episode featuring Miley and Kenan Thompson premiered!

15+ pics inside…