Proposal at Grammy's?

I am watching the Grammy's Awards live on youtube, and some guy who won a invitation on twitter, arrived there with his girlfriend, and all of a sudden, he stands on his knees, getting a little box out of his sock, and proposing to his girlfriend! How sweet is that? But, it would have been funnier if the girl said no.. Ha, I'm just being mean!
Congrats to them, God bless them!