Jimmy Fallon Honors Robin Williams By Standing On His 'Tonight Show' Desk

To say it was an emotional night on "The Tonight Show" would definitely be an understatement.

Before getting too far into the show Tuesday night, Jimmy Fallon took some time to pay tribute to the late, great Robin Williams.

Obviously shaken, Fallon fought back tears as he performed an impression, introduced a clip of the actor's first appearance on "The Tonight Show" and even reenacted "Dead Poets Society" to bid Williams farewell.

"The Tonight Show starring Jimmy Fallon" airs weeknights at 11:35 p.m. ET on NBC.