WATCH: Will Smith Does Impromptu “Summertime” Rap On The Late Show

Screen-shot-2013-05-21-at-10.49.27-AM-300x212Will Smith is ready for summer.

The actor gave an awesome impromptu performance of his ’90s hit single, “Summertime,” on Monday’s “The Late Show with David Letterman.”

Smith came out to the band playing his song, and began singing along to the tune before grabbing a microphone and doing it up right.Follow @Infocelebrity on Twitter!

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