Michelle Obama teamed up with LeBron James for one of the the most historic video bombs of all time -- throwing down a MONSTER JAM in the White House ... with a post-dunk STARE DOWN.
It all went down while the Heat were hanging out at the President's house last week -- working with the First Lady to promote her "Let's Move!" campaign.
While a couple of the guys were talking to the camera about the importance of exercise, LeBron snuck behind the gang with a mini-hoop ... and Flotus delivers a one-handed slam!
The best part ... the way she stares down the camera after the dunk. Classic.
Check out the video ... the Founding Fathers would be proud.
WATCH ME DUNK THIS BASKETBALL
... in the White House
1/21/2014 6:00 AM PST BY TMZ STAFF
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