According to Star Magazine and several other celebrity websites out there, Liam cheated on Miley over the weekend.
Liam reportedly got really flirty and cozy with actress January Jones at a pre-Oscar party a few days ago.
"It looked like they had some hot chemistry," an eyewitness at the event told Star.
"They were all over each other...and they even kissed!"
The cheating rumors haven't been confirmed or denied by any of the people involved but we're really hoping it's not true! Miley will be devastated! She has done nothing but talk him up these past few months!
Miley's currently dealing with other drama too after ANOTHER pot-smoking picture was posted on the net.
While she denied the last one, it really does look like her in this photo!
Poor Miley, we're sure the cheating rumors are the last thing she needs right now!
Do you think Liam cheated on Miley?