Jimmy Fallon  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 , Tina Fey , Mariah Carey , Tracy Morgan, Joan Rivers, Kim Kardashian , Seth Rogen , Lindsay Lohan , Sarah Jessica Parker , Lady Gaga , and finally, Stephen Colbert  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  is also worth a watch!