Jimmy Fallon is celebrating a big milestone: The new king of late night is turning 40 years old Friday. From Saturday Night Live to Late Night to The Tonight Show, the funnyman has been keeping us laughing for as long as we can remember – which is why it was easy for us to come up with 40 reasons why we love him. (Warning: You're about to go down a rabbit hole of Fallon's best moments.)
Want to know what makes Adam Levine super excited?
See the awkward – but awesome – styles and poses your favorite TV buddies were rocking 20 years ago