Was it the twerking that did them in?
Or the texting?
Miley Cyrus, 20, and Liam Hemsworth, 23, have ended their relationship and called off their engagement, according to reports from People and E! News.
The buzz has long been brewing, but now it appears to be official, with reps for both camps confirming the news to People.
E! says the split was "Miley's decision, after coming to grips with Liam what she believed was less than faithful to her."
The couple – who met on the movie set of 2010's The Last Song – got engaged in May 2012. But there has been buzz for months that the relationship was on the rocks.
Over the weekend, he was spotted at the Mayweather fight in Las Vegas, while she was busy unfollowing him on Twitter.
All of it comes amid an Us Weekly report that Hemsworth was texting January Jones, with whom he had been linked at an Oscar party in March. His rep called that report a "fabrication."