Miley Cyrus has hit back at a report she's been caught cheating on boyfriend Liam Hemsworth - insisting it's "not her" in a photo alleged to show her with a mystery man.
The Hannah Montana star acted swiftly after a post on celebrity blog contained an image of a young woman in a black bikini reclining on a boat in the arms of a semi-naked hunk.
The report alleged the woman in the picture is Cyrus - but she has moved quickly to crush the claim.
A representative for the singer/actress tells, "That's not her."