VIDEO: Sneak Peek - Jack Black and Kyle Gass' Tenacious D Stops by JAY LENO

In tonight's comedy segment, Jay Leno makes one lucky guy's dream come true by bringing back his favorite Disney show, 'Hannah Montana'. Then, Jack Black and Kyle Gass from the band 'Tenacious D' share their experience on tour and also preview a music video from a super fan who wrote a song after not getting into their concert. Plus, Rosie Perez visits and shares the details of her last-minute Vegas wedding that started with a bet. Check out clips from the appearances below!

"The Tonight Show with Jay Leno" features a nightly monologue (the longest in late night), news-making guests, and ongoing comedy segments, including "Headlines," "Jaywalking" and "Battle of Jaywalking All-Stars." The result is a unique and humorous look at the daily happenings in the news and in pop culture.

The program is also a proven barometer of political clout. In 2009, the show made history by Being the first late-night show to host a sitting president when Jay Leno welcomed President Barack Obama as a guest.

"The Tonight Show with Jay Leno" is from Big Dog Productions in association with Universal Television. Debbie Vickers is the executive producer.