Wedding Party in the U.S.A.! Miley Cyrus and Hunger Games star Liam Hemsworth are engaged to be married after three years of dating, their reps confirm to PEOPLE exclusively. "I'm so happy to be engaged and look forward to a life of happiness with Liam," Cyrus, 19, tells PEOPLE. Australian actor Hemsworth, 22, who met Cyrus when they costarred in The Last Song in 2009, proposed on May 31 with a 3.5-carat diamond ring from jeweler Neil Lane. [url=http://www.people.com/people/article/0,,20601230,00.html]x[/url] __________________________________________________________ What's your opinion about their engagement?