When Will Smith appeared on the David Letterman show, he did a lot more than just talk – He gave the chatshow host a great big kiss on the lips!

The Hollywood superstar is currently promoting his new film Hancock with Charlize Theron, and has been doing the media rounds building up hype for the upcoming flick.

When complimented by Letterman about his youthful good looks, Smith leaned in closer and started flirting, proclaiming: “Once you go black, you never go back Dave.”

He then proceeds and plants a great big wet one straight on his lips!

Should Jada be jealous? Be sure to leave your comments below.