“This is my first time on Conan’s show!” Justin Timberlake exclaimed to rapturous cheering last night. “I finally did a movie funny enough to make it to Conan’s show.” And as we know, JT is all about movies (and golf) these days, and, sadly, not music. Anyway, the two broke the ice during their first meeting by talking about Conan’s wife Liza, Justin’s three Emmy nominations and the sex scenes between Timberlake and Mila Kunis in their new film Friends With Benefits. Watch below.

In Friends With Benefits, Justin goofs on tween rap duo Kriss Kross’ 1992 chart-topping hit “Jump” by belting out the song.

“That came from a very real place,” Timberlake told O’Brien. “We were trying to think of a song that could be funny but also a great pop culture reference for when I was, I don’t know, 12 or 13. And that song was like the song. And funny enough, I gotta say, when you go back and listen to it, it’s still a pretty awesome song. It’s still pretty jammin’.”

For the record, Justin, who turned 30 this year, would have actually only been 11 when “Jump” was released — i.e. younger (by at least two years) than the members of Kriss Kross themselves.

This in absolutely no way makes us feel old or anything. No, not at all… *sob*.