Kermit the Frog stopped by “The Tonight Show” Monday (March 17), where he sang his classic “It’s Not Easy Bein’ Green” with host Jimmy Fallon — because on St. Patrick’s Day, it’s the best day to be green.

Below, Kermit talks about his “nude scene” with Tina Fey where she licks him and sticks him to a wall — but he’s always nude, so it’s OK.

Kermit also shows a clip from the movie featuring Ricky Gervais, who he says brings “an incredible, edgy humor” to the Muppets.

“Muppets Most Wanted” opens Friday (March 21) — check out Zap2it’s own interview with Kermit and Miss Piggy.