By Lanford Beard
July 27, 2011 at 09:59 PM EDT

Lee DeWyze, season 9 winner of American Idol, announced his engagement to People today. The 25-year-old proposed to model/actress Joanna Walsh at Disney World while they were watching a fireworks show and sipping champagne on a private yacht. DeWyze knew explained his motive behind this location, saying, “Joanna is a Disney freak.” The couple appropriately met last October while filming the video for DeWyze’s song “Sweet Serendipity.” Of their relatively quick engagement, he said, “When you know, you know. We both feel that way. We don’t need to be together 20 years before we figure it out.” DeWyze and Walsh plan to marry next fall.