Pop Investigation: Did Miley Cyrus Cheat on Liam Hemsworth?

Liam Hemsworth and Miley Cyrus just went public with their split and it seems that their relationship ran into some trouble because both had wandering eyes. Miley has been shooting a new movie in Detroit, Michigan and two weeks ago a picture of her straddling a mystery man was posted on Flickr—then quickly taken down. The male in the photo was thought to be her co-star Adam Sevani (pictured), who is a former boy bander and creator of the ACDC dance crew. Miley appeared in one of their 2008 dance battle videos and hasn’t exactly been shy about showing her affection towards co-workers in the past (remember the video of her giving a lap dance to the producer of The Last Song?). As for Liam, it looks like he might not have been so innocent himself. There are reports that he hooked up with a girl he met at the U.S. Open Surf Competition earlier this month, but other sources say his relationship with Miley was already over by then. What do you think about the split? Sound off below!