Nothing can really stop Miley Cyrus from doing her crazy, raunchy and controversial antics. From the 2013 VMAs performance to her recently released “Wrecking Ball” music video, even fiancé Liam Hemsworth appears to have no control over the former Disney star.

"He can't really control what she does and this video is another way he's letting her do what she wants to do because it's not affecting him or his career - it is all on Miley," an anonymous source exclusively revealed to HollywoodLife. Since Liam can't control "Twerking Queen" Miley, the Australian actor just allows Ms Cyrus to do what she wants, be supportive and keep tight-lipped on the subject matter.

The source further shared: "He is very proud that she is doing the thing that she loves and he supports her, he just doesn't broadcast it with a parade for the whole world to see. He likes being private with her and their relationship, whereas she doesn't. But you know what they say - opposites attract!"

The Miley-Liam relationship has been surrounded with split rumours due to the "Hannah Montana" star's changing persona, but it appears the two are privately working out on their issues and the engagement is still on.

At the moment, the "Hunger Games" star separates Miley's career move from their romantic relationship which helps him to carry on from all of the controversy surrounding them. "He is just separating everything and treating it as what it is, and that is entertainment. Let's be honest, she's not killing anyone," the source added.

With Liam giving the go signal, Miley Cyrus can continue to stun the fans and media with more shocking, controversial behavior and onstage performances. One of them could be the recently confirmed hour-long documentary titled "Miley: The Movement" where the singer-actress will give her fans a sneak peek into her personal life.

"I want all my fans to come with me to the studio, on the road, at performances. There's going to be a lot of ups and downs, and it's going to be completely insane. You've gotta be a part of the movement with me," the 20-year-old "We Can't Stop" singer stated according to an MTV News report.

A clip from the documentary even shows Miley Cyrus acknowledging her controversial raunchy performance with "Blurred Lines" singer Robin Thicke at the 2013 MTV VMAs. She declares that she is not really bothered by the negative feedbacks. "I don't pay attention to the negative. I've seen this play out so many times. How many times have we seen this play out in pop music? Madonna's done it. Britney's done it. Every VMA performance, that's what you're looking for. You're wanting to make history," Miley stated.

"Miley: The Movement" will premiere on Wednesday, October 2, at the MTV channel.