Once they took their on-screen romance on the road, few thought it would last. But after a few on-and-off-again years of dating, Miley and Liam made it official on May 31. But will these two stars say "I do" in 2013? We're not sure. But we do know one critical wedding detail: The pair WON'T be having three weddings, as was once reported earlier this year. Sorry, Billy Ray.