Billy Joel was a guest on The Tonight Show and Fallon introduced the artst to a voice-looping app that they then used to sing “The Lion Sleeps Tonight."
Know the words? Feel free to sing along.
But not too loudly. You don't wanna overshadow Joel and Fallon.
Watch the performance here and then click through other memorably Jimmy Fallon talk show moments:
1. Jimmy Fallon and Billy Joel Duet
Jimmy Fallon and Billy Joel put on a great duet in this video. Watch the Tonight Show host and music icon go!
2. Jimmy Fallon: First Lick (First Kiss Parody)
Jimmy asked 20 puppies and kittens to kiss for the first time in this "First Kiss" parody.
3. Jimmy Fallon, Jon Hamm Photobomb People
Jimmy Fallon and Jon Hamm photobomb people in NYC. It's great.
4. Lindsay Lohan-Jimmy Fallon Water Fight!
A clip of Lindsay Lohan on The Tonight Show with Jimmy Fallon on March 6, 2014. Watch the two of them have a water fight!
5. Jimmy Fallon Lip-Sync Off with Paul Rudd
Jimmy Fallon and Paul Rudd compete in a lip-sync off. And it's pretty epic.
6. Michelle Obama on The Tonight Show with Jimmy Fallon
Michelle Obama is quite the good sport. Watch her star in a Tonight Show sketch here with Jimmy Fallon and Will Ferrell.
7. Jimmy Fallon Tonight Show Debut
Jimmy Fallon is officially the host of The Tonight Show. Relive his opening episode here.
8. Jimmy Fallon Jokes About Justin Bieber
Jimmy Fallon jumps on the anti-Justin Bieber bandwagon in this monologue. Watch him crack some jokes at the artist's expense.
9. Kevin Bacon Goes Footloose on The Tonight Show
This is awesome! Watch Kevin Bacon recreate his iconic "Footloose" dance on The Tonight Show.
10. Samuel L. Jackson Poetry Slam, Boy Meets World Style
This is an amazing video of a Samuel L. Jackson poem dedicated to the his sitcom Boy Meets World. It is from The Tonight Show.