Zac Efron: "Late Show" Stud

Making an evening stop at the Ed Sullivan Theatre, Zac Efron was all smiles at the "Late Show with David Letterman" in New York City on Tuesday (November 24).

Dressed in a snazzy suit, the "High School Musical" hunk greeted fans and posed for pictures as he headed inside to promote his new movie, "Me and Orson Welles".

Keeping quite the busy schedule as of late, Zac teamed up with his "Me and Orson Welles" costar Christian McKay earlier in the day to unveil a plaque at the original Mercury Theatre site on their upcoming movie's behalf.

Zac also recently declared his desire to be seduced by an older woman on the big screen, saying, "I'm still waiting for that script and that director. I like a lot of movies from the 1970s. A movie I just saw again and one of my favorites is The Graduate."

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Enjoy the pictures of Zac Efron out at the Late Show (November 24).