There have been tons of unforgettable moments on The Tonight Show Starring Jimmy Fallon, but one of the absolute best has to be when Jack Black rocked out with his famous Sax-A-Boom. Jack Black, the hilarious rockstar and actor, is known for playing this silly plastic toy during live concerts. So, Jimmy Fallon had a brilliant idea—why not let Jack show it off on the show?
Jack was all in. He started by joking around, saying people often mix up the saxophone with the Sax-A-Boom. But he made it clear, saying, “A Sax-A-Boom is its own kind of instrument that takes years to master.” Then Fallon surprised everyone by revealing he actually had a Sax-A-Boom right there on set!
Jack took the toy like it was a priceless treasure and said, “Here it is, rare as a Stradivarius. Yes, I will give you a taste.” The crowd went wild, and what happened next was comedy gold.
Jack started jamming on the Sax-A-Boom, which doesn’t actually play live notes—it has buttons that trigger fun, pre-recorded sax sounds. But Jack made it look like he was playing the most amazing solo in the world. He moved his eyebrows to the beat, danced around, and gave the whole thing so much energy, it felt like a real concert. The audience clapped and cheered like crazy.
But Jack wasn’t done yet.
He walked over to The Roots, the show’s awesome house band. Their leader, Questlove, immediately picked up on the vibe and jumped into a funky rhythm. Jack and Jimmy Fallon danced together while the crowd went nuts. It turned into a full-blown jam session—funny, loud, and totally unforgettable.
This wild Sax-A-Boom performance quickly became a fan favorite. It now has 95 million views on YouTube, making it the seventh most popular video on the show’s entire channel. And Jack Black has done other legendary stuff on late-night TV too—like that time he had an epic guitar battle with Conan O’Brien.
Jack also plays the Sax-A-Boom on tour with his comedy rock band, Tenacious D. Even though it’s just a kid’s toy, fans can’t get enough of it. The Sax-A-Boom was made by a company called DSI Toys. It has the word “Kawasaki” printed on it, but it actually has nothing to do with the famous Japanese motorcycle company, Kawasaki Heavy Industries.
Because of Jack, the Sax-A-Boom has become a rare collector’s item. It originally sold for just $20 back in the late 1990s, but now people are selling them online for $50, $100, or even more!
If you want more laughs and crazy Jack Black moments, you can subscribe to his YouTube channel or follow him on Instagram. Whether he’s rocking out with a toy instrument or showing off his perfect comedy timing, one thing’s for sure—Jack Black always brings the fun.
