Jack Black helps a brotha out

Jack Black was at the premiere of Knocked Up when he decided to help out a guy who became petrified while trying to propose to his girlfriend. Black is friends with the film's director.

Apparently the poor guy "got cold feet" in the middle of his planned proposal. Jack went over and dropped on one knee and said, "Of all of the people I have ever known, you are the one I love the most on this planet- and on every planet."

He then busted out into the chorus of Journey's "Don't Stop Believin'"....howww funny. What a great story for their grandkids. Among the laughter, the girlfriend was heard saying yes. Aww.

In Touch/Photo: Slate.com