Miley Cyrus and her hunky Aussie fiance Liam Hemsworth have split, according to a new report Wednesday.

“Miley and Liam are done -- it’s over," an insider close to the celebrity couple told the NY Post. "She likes to party really hard and can be pretty wild. It became a problem for him.”

A separate source told the paper that Miley "is a fiery character, and they do fight, but she is crazy about Liam," and "isn’t ready to accept it might be over for good.”

Another source told the paper Liam, 23, "