Leno, 63, will hand over NBC's late-night franchise to Fallon after his final show on February 6, which will feature guests Billy Crystal and Garth Brooks, reported Digital Spy.
"(Jimmy is) going to do terrific because, I mean, there really is a true generation gap. He's 23 years younger than I am and, you know, he knows the music... When I see him do a dance number with Justin Timberlake, well, I can't do that. I get it," Leno said.