Liam Hemsworth has officially filed for divorce from Miley Cyrus 11 days after the couple announced their split. He's repped by famed Hollywood celebrity divorce attorney Laura Wasser who cited "irreconcilable differences" in her client's filing. The couple had a pre-nup, which will dramatically simplify the separation.

Miley and Liam dated off-and-on for ten years and married last December in an intimate home ceremony at the Cyrus compound in Nashville.

Reports claim Miley was the one to end the relationship just before she was photographed making out with gal pal Kaitlynn Carter -- Brody Jenner's ex -- on a boat in Italy. Various tea reports say Miley's camp leaked that the singer was fed up with Liam's hard-partying ways including over-indulgence in alcohol and drugs, while Liam leaked to the press that Miley had cheated.

What do YOU think the truth is?