Looks like we weren't the only ones who were cringing at Miley Cyrus' on-stage antics at the VMAs - her fiancé Liam Hemsworth is said to be 'mortified' by her performance.

The star raised some serious eyebrows when she paraded around on stage half-naked, sticking her tongue out, twerking and gyrating against Robin Thicke as they sang his 'Blurred Lines'.

miley cyrus liam hemsworth

Miley Cyrus and Liam Hemsworth

Now, Liam is also reported to be distancing himself from Miley, fearing her behaviour could impact on his film career.

A source told The Mirror: "Liam really does care about Miley, but her racy new look and sort of ghetto attitude isn’t exactly what he signed up for.

"He doesn’t really see anything sexy about what she did on stage."

miley cyrus robin thicke

Miley on stage with Robin Thicke at the VMAs

The former 'Hannah Montana' star's new image also came in for criticism in her video for single 'We Can't Stop'.

Prior to her VMA performance, she addressed the accusations, telling We Love Pop that she isn't the same person she was when she first found fame.

She said: "I'm a totally different person to who I was when I was 16 or 18... I wanted to let people see that side of me, just not the glammed up beauty shot girl as that's just not me.

"Haters are gonna hate, but the haters are also gonna click on your YouTube video to watch it so I really don't care.

"You can help me break records, even if you were just watching to hate on me. I break records, so I won!"

Asked if she had 'killed' Hannah Montana, she joked: "No, I can't say that! I still get her cheques!"

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  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform bonstage during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jemal Countess/FilmMagic)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform bonstage during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Michael Loccisano/FilmMagic)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jemal Countess/FilmMagic)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jemal Countess/FilmMagic)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jemal Countess/FilmMagic)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jemal Countess/FilmMagic)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jemal Countess/FilmMagic)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jemal Countess/FilmMagic)

  • 2013 MTV Video Music Awards - Backstage

    NEW YORK, NY - AUGUST 25: (EXCLUSIVE COVERAGE) Miley Cyrus attends the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Larry Busacca/Getty Images for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)

  • 2013 MTV Video Music Awards - Backstage

    NEW YORK, NY - AUGUST 25: (EXCLUSIVE COVERAGE) Miley Cyrus attends the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs onstage during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Rick Diamond/Getty Images for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Jeff Kravitz/FilmMagic for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus and Robin Thicke performs onstage during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Neilson Barnard/Getty Images for MTV)

  • 2013 MTV Video Music Awards - Backstage

    NEW YORK, NY - AUGUST 25: (EXCLUSIVE COVERAGE) Robin Thicke and Miley Cyrus attend the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Larry Busacca/Getty Images for MTV)

  • 2013 MTV Video Music Awards - Show

    NEW YORK, NY - AUGUST 25: Miley Cyrus performs during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Kevin Mazur/WireImage for MTV)