Miley Cyrus, 17, and Liam Hemsworth, 19, have broken up, according to his rep, who confirmed the news to UsMagazine.com on Wednesday. The two met last year on the set of The Last Song, in which he played her romantic lead. Just two months ago, Cyrus posted on her website to say that despite rumors, she and Hemsworth were still together: “Just wanna clear up a rumor. Liam [Hemsworth] and I did not break. EVER!,” she wrote. “We are so happy and a lot of that has to do with the amazing relationship he has with my family.” However, Liam was reportedly increasingly jealous of Miley’s raunchy onstage antics and skimpy outfits. Miley is currently filming the motion picture LOL in Detroit and has been photographed semi-straddling/crotch grinding her co-star, 18-year-old Adam Sevani (pictured at left above), who is sitting on stairs in the photo. Sevani recently starred in Step Up 3.