On Tuesday night's Late Night, Jimmy Fallon and his buddy Justin Timberlake went back to summer camp to perform a '90s hit song.
RELATED VIDEO: Celebrity Best Friends
Retainers and flashlights on hand, JT and Jimmy ignore their bedtime and decide to sing Hootie & the Blowfish's 1995 track Only Wanna Be With You. Before attempting to go to sleep, Timberlake asks his pal, "Hey, Jimmy, best friends forever?" Jimmy reacts, "Yeah."
The singer is appearing on Late Night every Tuesday until the release of The 20/20 Experience: 2 of 2 on Sept. 30.
RELATED PICS: Check Out Another Adorable Celebrity Bromance
In case you forgot what the original Hootie song sounds like, check out the video, below: