Miley Cyrus and Liam Hemsworth 'definitely over'

Miley Cyrus and Liam Hemsworth have really called it quits, it has been revealed.

The young couple's engagement is on the rocks and it has been claimed that Hemsworth cheated on his fiancee with Mad Men star January Jones, Us Weekly reported.

A source confirmed to the publication that "They are definitely over."

Cyrus, who has been spotted without her engagement ring on several occasions, is also said to have told a friend that "We're done."

According to the magazine, the pair now finds themselves in an "awkward" housing situation as neither has moved out of their shared home.

A source also divulged that Cyrus and Hemsworth are sleeping in separate beds.

Another source told the publication that Cyrus was always fighting with her Hunger Games beau and started flirting with other guys when she heard the rumours about January.