![ICYMI: Justin Timberlake Rocks 4 Non Blondes’ ‘What’s Up’ on ‘The Tonight Show’](http://townsquare.media/site/252/files/2017/08/Justin.jpg?w=630&h=420&zc=1&s=0&a=t&q=89&w=980&q=75)
ICYMI: Justin Timberlake Rocks 4 Non Blondes’ ‘What’s Up’ on ‘The Tonight Show’
Justin Timberlake made his return to Camp Winnipesaukee a memorable one.
The singer-slash-actor-slash-all-everything performer joined Jimmy Fallon on Tuesday night's Tonight Show for a new sketch in the recurring bit at the camp, performing the 4 Non Blondes' classic "What's Up."
Keegan-Michael Key, playing a no-nonsense counselor, and Billy Crystal, doing his part as a camper leading a singalong of Gloria Estefan's "Rhythm Is Gonna Get You," also stopped by in this skit, which tested the stars' ability to keep a straight face.
Music was in the air on Jimmy Kimmel Live!, too. Lindsey Stirling, with some help from Rooty, stopped by to perform her new song, "Love's Just a Feeling."
On The Late Show With Stephen Colbert, the antagonistic relationship between the U.S. and North Korea was addressed in its cold opening, poking fun at the heightened tensions between the two nations after President Trump made his now-infamous "fire and fury" remarks. Naturally, Trump was a target, as was North Korean leader Kim Jong-un.
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