A new video of a guy proposing to his girlfriend racked up millions of hits on YouTube over the weekend.

On Wednesday, Isaac Lamb of Portland, Oregon got a bunch of friends to help make a live lip-sync video to the song "Marry You" by Bruno Mars.

First his brother set it all up by having Isaac's girlfriend Amy sit on the back of an SUV with her legs hanging out.

He said wanted to play a song for her.  Then when the music started, the car slowly pulled out of the driveway and onto the street . . . and all of her friends showed up one at a time, and did a huge choreographed dance routine.

It started with just two of them, but by the end there were sixty.  He filmed it with two cameras, so you get to see his girlfriend reacting while you watch it.

Watch the video of the first ever live lip-dub marriage proposal:

In case you're wondering, Isaac is an actor and Amy is a dancer.  So the idea didn't just come out of nowhere.  Also, she admitted that when she heard the line "marry you" in the Bruno Mars song, she immediately knew what was up.

The computers at 3:47 are another nice touch.  Apparently the people who couldn't be there in person recorded themselves dancing, and sent videos instead.