Jimmy Fallon [1] has a lot of friends in Hollywood, but it turns out many of them didn't believe he would ever make it to The Tonight Show. Good news for us: all of them stopped by Fallon's very first show to pay their respects . . . and the $100 they lost betting against Fallon. The parade included Robert De Niro [2], Tina Fey [3], Mariah Carey [4], Tracy Morgan, Joan Rivers, Kim Kardashian [5], Seth Rogen [6], Lindsay Lohan [7], Sarah Jessica Parker [8], Lady Gaga [9], and finally, Stephen Colbert [10] with a bucket full of pennies and an announcement: "Welcome to 11:30, b*tch." Have we learned our lesson? Don't bet against Jimmy Fallon.

In case you haven't watched yet, "The Evolution of Hip-Hop Dancing," starring Will Smith [11] is also worth a watch!