Watch Justin Timberlake and Jimmy Fallon return for 'Camp Winnipesaukee' on 'The Tonight Show'
The Tonight Show Starring Jimmy Fallon/YouTube

Tuesday night (Aug. 8) saw the return of the hilarious “Camp Winnipesaukee” sketch on “The Tonight Show,” led by host Jimmy Fallon and constant comedy collaborator Justin Timberlake. For those who haven’t seen the recurring skit, the premise involves a young Fallon and Timberlake as cabin mates at camp whose late night singing shenanigans get them in trouble with their counselor. This installment was particularly uproarious thanks to a cameo from “Key & Peele’s” Keegan-Michael Key. 

To summarize, Jimmy and Justin sing 4 Non Blondes' “What’s Up,” which stokes the ire of Mr. Fletcher (Key) whose improvisations have Fallon and JT cracking up. The impromptu zanniness causes the skit to run long, and Billy Crystal, who makes a cameo as a camper from another camp, gets his yucks in when Fallon asks “If you’re 12 why do you have a beard?” to which the comedy veteran replies “I didn’t when the skit started.” You can check out the latest episode of "Camp Winnipesaukee" above.