Lee DeWyze and Jonna Walsh: Engaged!

Lee DeWyze is officially a champion in music and in love.

The American Idol victor proposed to Jonna Walsh on July 16 and you'll never guess what she said: YES!

The question was asked over champagne on a private yacht at Disney World, according to People, as fireworks exploded overhead.

“Jonna is a Disney freak,” DeWyze said. “They were playing love songs on the boat and I got down on my knee and asked her. I had a speech prepared but it all went out the window so I just asked her. She started crying and I said, ‘Is that a yes?'"

The pair met on the set of Lee's music video for “Sweet Serendipity" and will get married in the fall of 2012.

[Photo: WENN.com]