Comedy Central star Stephen Colbert made it rain as he dumped a bucket of pennies onto Jimmy Fallon's desk, saying: "Welcome to 11:30, bitch!"
Robert De Niro
Robert De Niro was one of the first Hollywood greats to slap a $100 bill on Fallon's desk after he challenged: "To my buddy who said that I'd never be the host of The Tonight Show — and you know who you are — you owe me a hundred bucks."
It was a Saturday Night Live reunion when Tina Fey appeared on the show.
Former New York mayor Rudy Giuliani thanked Fallon for bringing The Tonight Show back to New York after 42 years.
Joan Rivers made a glamorous appearance in a fur-collared coat. It was a milestone moment for Rivers, who was a guest of Johnny Carson on The Tonight Show on February 17, 1965.
Former New York Jets quarterback Joe Namath wore a dark suit on the show — as opposed to the huge fur coat that caused such a stir when he wore it to the Super Bowl.
The butt of many late-night jokes, Kim Kardashian took a serious stance as she appeared wearing a button-down white shirt.
Even Lindsay Lohan was on hand to welcome Fallon to late night.
Voluptuous Mariah Carey pulled her $100 donation out of her cleavage.
Sparkling New Studio
Jimmy Fallon showcased his brand-new Tonight Show studio on Monday.
Seth Rogen popped up to lend a hand — and donate $100 — on Fallon's big night.
Sarah Jessica Parker
Sex and the City actress Sarah Jessica Parker was among the New York stars welcoming the show back to the Big Apple.
Tracy Morgan was among a number of former Saturday Night Live castmembers for Fallon's night in the spotlight.
Boxing great Mike Tyson — and his facial tattoo — gave Fallon hand a warm welcome.
Fallon opened his debut show with a humble dig: "Welcome to The Tonight Show. I'm Jimmy Fallon and I'll be your host — for now."
Jimmy Fallon on the Roof
The host braved the elements as he ventured up to the roof.
Jimmy Fallon and Will Smith
Fallon and first guest Will Smith re-created some smooth dance moves forthe "Evolution of Hip-Hop Dancing."
U2 and Bono were the first musical guests, as they performed in front of a perfect New York sunset.
The Irish rockers played their new single "Invisible" during their rooftop show.
U2 and Jimmy Fallon
After giving the sunset a musical theme song, Bono and U2 sat down to serenade Fallon.
Will Smith was Jimmy Fallon's first guest when he took over as The Tonight Show host on Monday.