WATCH: Chrissy Teigen's boob fully fell out of her dress while up on stage

HAHA this is great!

Chrissy Teigen suffered from an embarrassing wardrobe malfunction when John Legend brought his wife up on stage for a Slow Dance during his concert in New York City.

The hot momma was grooving with her husband to the sexy tune when all of a sudden her boob popped out of her dress!

But the model took it all in stride as she grabbed the mic and apologised to the crowd for the unexpected wardrobe malfunction! 

Watch it happen below: