The star of “A Minecraft Movie” made an appearance on “The Tonight Show Starring Jimmy Fallon” Monday night, where he played an energetic guitar solo to the crowd and lost his pants in the process, revealing his red and black boxers. Black pulled his pants back up and Fallon told the actor he was bringing “the heat” to the set.

Jack Black experienced a slight wardrobe malfunction during his Monday appearance on “The Tonight Show Starring Jimmy Fallon.” The actor, 55, came out while playing on an electric guitar, but as he danced up the steps his pants fell around his ankles, showing off his black and red boxers.

The actors appeared in a video segment in a break from shooting in Australia as they introduced Sony film chief Tom Rothman.

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,

Boom, Jack Black always makes his mark during a Tonight Show visit. And the A Minecraft Movie star's March 31 appearance was no exception. Upon Jimmy Fallon's introduction, Black stepped into Studio 6B axe-first,

Jack Black is hosting “Saturday Night Live” for the first time in nearly 20 years on April 5 — and it’s keeping him up at night. The actor, comedian and musician made a stop in London on Sunday for the premiere of “A Minecraft Movie” before heading into the “SNL” writer’s room this week,

There's quality entertainment and then there's quality entertainment starring Jack Black. The two are mutually exclusive. Known for his signature melodic-meets-physical style of comedy and larger-than-life personality,

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).