Jack Black gave The Tonight Show audience much more than they bargained for on Monday (March 31) evening as he flaunted his multi-colored underwear while greeting host Jimmy Fallon. Black arrived fully clothed in a colorful button-down and black pants as he shredded a Minecraft guitar while walking through the audience and to the Tonight Show stage to promote A Minecraft Movie,

The “Minecraft Movie” star was unfazed as his pants fell to his feet as he announced he forgot to bring a belt.

Stopping by the NBC late night show in support of his new film “A Minecraft Movie,” Black opted for a more exciting entrance than just coming out from behind the curtain. Instead, he entered from the top of the audience, shredding on a Minecraft guitar (well, fake shredding. He was definitely miming it).