Miley Cyrus broke down on stage during her iHeartRadio music festival performance in Las Vegas on Saturday.
The former child star's emotional rendition of her new single 'Wrecking Ball' saw her mascara begin to run as she left the stage after the song.
Miley Cyrus in Las Vegas
The performance came just days after she announced she was no longer engaged to actor Liam Hemsworth.
However, she thanked the audience for helping the song top the US Billboard Hot 100 chart this week.
"I couldn't have done it without all you guys," she said.
The 20-year-old - who first emerged onstage in all white, wearing a tight corset and high wasted shorts that revealed some of her backside - performed a 4-song set.
During the show Miley twerked and slapped a dwarf dancer's butt and was also seen wearing a white mesh mini dress with nipple pads and a bikini bottom.
Miley Cyrus Twerking
2013 MTV Video Music Awards - Show(01 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(02 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(03 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(04 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(05 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(06 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(07 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(08 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(09 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(10 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(11 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(12 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(13 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(14 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(15 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(16 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(17 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(18 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Backstage(19 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(20 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Backstage(21 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(22 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(23 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(24 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(25 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(26 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(27 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(28 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Backstage(29 of30)
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) (credit:Getty Images)
2013 MTV Video Music Awards - Show(30 of30)
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) (credit:Getty Images)