We're not sure if it was Miley Cyrus' raunchy behavior or the cheating rumors surrounding Liam Hemsworth and Mad Men's January Jones that took a wrecking ball to this relationship, but the couple is officially over, People reports. The split was a long time coming, especially since the "We Can't Stop" singer and The Hunger Games actor were only spotted together a few times this year. Their last red carpet appearance was at Aussie's film premiere on Aug. 8. Miley and Liam met on the set of their 2010 film, The Last Song, and got engaged in 2012. At the time Miley told People, "I'm so happy to be engaged and look forward to a life of happiness with Liam."