Watch Will Smith Spontaneously Rap ‘Summertime’ on Letterman


Will Smith was on Letterman promoting some movie last night when he launched into an impromptu rendition of his classic “Summertime,” set to Kool & the Gang’s “Summer Madness,” which I totally didn’t recognize as Kool & the Gang’s “Summer Madness” until a colleague educated me.

https://www.youtube.com/watch?v=9-GtI8SVMFo;

Kind of puts you in the mood for…