Jimmy Fallon makes his debut as the new host of the Tonight Show Monday night and Fallon has taken to the Internet to let everyone know how excited he is for the first night.

The new Tonight Show host took to Instagram to let people know just how excited he is, reports E! News. "This is it. We are Starting a new chapter of the Tonight Show."

He continued, "I can't even begin to describe what we are all feeling right now here at 30 Rockefeller Plaza, NYC. But - I know that we'll never have this exact feeling ever again." He noted that after Monday night's episode, he, and everyone else involved, will "no longer wonder" about the experience of hosting the late-night talk show that Jay Leno dominated for a long time.

Fallon also spoke with Ryan Seacrest on his radio show and noted that "It's so exciting. It's crazy... This is the dream job."

As previously reported, Fallon's first guest will be actor Will Smith and U2 is joining as the musical guest.

The whole week is filled with big guest stars as Tuesday night Jerry Seinfeld and Kristen Wiig sit down. Lady Gaga is the musical host for the night.

image courtesy of NBC