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Actor Liam Hemsworth(L) and actress/singer Miley Cyrus arrive at the 2012 Vanity Fair Oscar Party hosted by Graydon Carter at Sunset Tower on February 26, 2012 in West Hollywood, California.
The wedding is off.
Miley Cyrus and Liam Hemsworth have ended their almost four-year relationship, the singer's rep confirms to E! News.
Sources say that the split was "Miley's decision, after coming to grips with Liam what she believed was less than faithful to her."
As of Monday, the actor was in the process of moving out of Cyrus' Los Angeles home, an insider added.
Cyrus has been "doing good," focusing on her career milestones as of late (including breaking records on Vevo) and is "excited to launch her album in coming weeks."
The two were last spotted together on Aug. 8 at the red carpet premiere of Hemsworth's film, "Paranoia," in Los Angeles.
He was notably absent during her controversial MTV VMA performance later that month.
And over the weekend, things seemed to foreshadow Monday's news when the "Wrecking Ball" singer unfollowed her former fiance on Twitter.
The couple has put even more distance between them lately with Cyrus promoting her upcoming album "Bangerz" in Europe while Liam was in Las Vegas for the Floyd Mayweather fight.
The breakup also comes on the heels of the "We Can't Stop" singer opening up about wedding plans in the most recent issue of Harper's Bazaar.
I definitely don't have time to deal with a wedding right now," she told the fashion mag. "But I will at some point."
Just last week, rumors swirled that Hemsworth had been going behind Cyrus' back and sexting "Mad Men" star January Jones.
And while his rep vehemently denied the reports calling them, "tabloid fiction," a source tells E! News that there is some truth to the reports of Hemsworth having an inapproriate relationship with Jones.
The two announced their engagement in 2012, when the former Disney darling was 19-years-old.
At the time, the teen bride-to-be told People, ""I'm so happy to be engaged and look forward to a life of happiness with Liam."
"The Hunger Games" hottie proposed with a stunning 3.5-carat diamond ring from jeweler Neil Lane.
The former duo, who denied rumors of an engagement months before the Aussie actually popped the question, met back in 2009, when they costarred in "The Last Song."
They also briefly called it quits back in August 2010 before getting back together.