Singer Christina Perri has shot down rumours her breakthrough hit Jar Of Hearts was about former Panic! At The Disco rocker Ryan Ross. The pop star's 2010 debut single sparked fevered speculation about its subject matter but she has never confirmed the identity of the mystery ex-boyfriend featured in the track. Rumours are swirling online that Perri once dated singer/songwriter Ross and wrote Jar of Hearts about their break-up, but she has now reached out to her fans to clear up the speculation. In a post on Twitter.com, Perri writes, "This little rumour about Jar of Hearts being written about that Ryan kid from Panic! At The Disco is a big fat FALSE... horses mouth (sic)."