#JackBlack made quite the entrance on “The Tonight Show” on Monday night, as he is known to do, but this time, the man actually lost his pants while doing it. 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). As he ran down through the crowd and onto the stage, he wound up skipping over to #Fallon himself. But, as Black made it to the host for a hug, the actor’s pants quite literally dropped of their own accord to his ankles.