Singer Miley Cyrus arrives on the red ca

Singer Miley Cyrus arrives on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. AFP PHOTO/Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)

Singer Miley Cyrus arrives on the red ca

Singer Miley Cyrus arrives on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. AFP PHOTO/Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)

Actress and singer Miley Cyrus arrives w

Actress and singer Miley Cyrus arrives with her sister, actress Noah Cyrus (R) at the premiere of "Justin Bieber: Never say Never” in Los Angeles, California on February 8, 2011. AFP PHOTO / GABRIEL BOUYS (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)

2011 Pre-GRAMMY Gala And Salute To Industry Icons Honoring David Geffen - Arrivals

arrives at the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California.

Actress and singer Miley Cyrus arrives o

Actress and singer Miley Cyrus arrives on the red carpet for the 2011 Pre-Grammy Gala & Salute to Industry Icons, with Clive Davis Honoring David Geffen at the Beverly Hilton on February 12, 2011. The event, on the eve of the 53rd Annual Grammy Awards, honored Geffen Records founder and DreamWorks SKG co-founder David Geffen who was presented with the President's Merit Award in recognition of his significant contributions to the music industry and the impact his efforts have had on music and the business of music. Past recipients of the Grammy Salute To Industry Icons President's Merit Award include Herb Alpert and Jerry Moss, Clive Davis, Ahmet Ertegun, Berry Gordy, Doug Morris, and Mo Ostin. AFP PHOTO / Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)

The 53rd Annual GRAMMY Awards - Arrivals

<> on February 13, 2011 in Los Angeles, California.

Celebrities Visit "Late Night With Jimmy Fallon" - March 3, 2011

<> "Late Night with Jimmy Fallon" at Rockefeller Center on March 3, 2011 in New York City.

Celebrities Visit "Late Night With Jimmy Fallon" - March 3, 2011

<> "Late Night with Jimmy Fallon" at Rockefeller Center on March 3, 2011 in New York City.

Nickelodeon's 24th Annual Kids' Choice Awards - Arrivals

arrives at Nickelodeon's 24th Annual Kids' Choice Awards at Galen Center on April 2, 2011 in Los Angeles, California.

Nickelodeon's 24th Annual Kids' Choice Awards - Show

onstage during Nickelodeon's 24th Annual Kids' Choice Awards at Galen Center on April 2, 2011 in Los Angeles, California.

Nickelodeon's 24th Annual Kids' Choice Awards - Show

<> on April 2, 2011 in Los Angeles, California.

US singer Miley Ray Cyrus (born Destiny

US singer Miley Ray Cyrus (born Destiny Hope Cyrus) gives a press conference in Asuncion, Paraguay on May 10, 2011. Cyrus is in a Latin American tour. AFP PHOTO Norberto Duarte (Photo credit should read NORBERTO DUARTE/AFP/Getty Images)

US singer Miley Ray Cyrus (born Destiny

US singer Miley Ray Cyrus (born Destiny Hope Cyrus) gives a press conference in Asuncion, Paraguay on May 10, 2011. Cyrus is in a Latin American tour. AFP PHOTO Norberto Duarte (Photo credit should read NORBERTO DUARTE/AFP/Getty Images)

US singer Miley Cyrus performs on stage

US singer Miley Cyrus performs on stage during her concert held at the Jockey Club, in Asuncion, Paraguay, on May 10, 2011, as part of her 'Gypsy heart' Tour. AFP PHOTO/Norberto Duarte (Photo credit should read NORBERTO DUARTE/AFP/Getty Images)

Starkey Hearing Foundation "So The World May Hear Awards Gala" 2011

ST. PAUL, MN - JULY 24: Singer Miley Cyrus attends the Starkey Hearing Foundation's "So The World May Hear Awards Gala" 2011 at River Centre on July 24, 2011 in St. Paul, Minnesota. (Photo by Adam Bettcher/Getty Images for Starkey Hearing Foundation)

Starkey Hearing Foundation "So The World May Hear Awards Gala" 2011

ST. PAUL, MN - JULY 24: Mylie Cyrus performs at the Starkey Hearing Foundation's "So The World May Hear Awards Gala" 2011 at River Centre on July 24, 2011 in St. Paul, Minnesota. (Photo by Adam Bettcher/Getty Images for Starkey Hearing Foundation)

Starkey Hearing Foundation "So The World May Hear Awards Gala" 2011

ST. PAUL, MN - JULY 24: Mylie Cyrus performs at the Starkey Hearing Foundation's "So The World May Hear Awards Gala" 2011 at River Centre on July 24, 2011 in St. Paul, Minnesota. (Photo by Adam Bettcher/Getty Images for Starkey Hearing Foundation)

2011 MTV Video Music Awards - Arrivals

arrives at the 2011 MTV Video Music Awards at Nokia Theatre L.A. LIVE on August 28, 2011 in Los Angeles, California.

TOPSHOP/TOPMAN Chicago Store Opening

CHICAGO, IL - SEPTEMBER 08: Singer/actress Miley Cyrus attends the opening of TOPSHOP/TOPMAN on September 8, 2011 in Chicago, Illinois. (Photo by Barry Brecheisen/Getty Images)

American Giving Awards Presented By Chase - Backstage And Audience

attends the American Giving Awards presented by Chase held at the Dorothy Chandler Pavilion on December 9, 2011 in Los Angeles, California.

American Giving Awards Presented By Chase - Red Carpet

arrives at the American Giving Awards presented by Chase held at the Dorothy Chandler Pavilion on December 9, 2011 in Los Angeles, California.

American Giving Awards Presented By Chase - Arrivals

American Giving Awards Presented By Chase - Arrivals at Dorothy Chandler Pavilion on December 9, 2011 in Los Angeles, California.

CNN Heroes: An All-Star Tribute - Arrivals

<> at The Shrine Auditorium on December 11, 2011 in Los Angeles, California.

CNN Heroes: An All-Star Tribute - Arrivals

<> at The Shrine Auditorium on December 11, 2011 in Los Angeles, California.

2012 People's Choice Awards - Arrivals

arrives at the 2012 People's Choice Awards held at Nokia Theatre L.A. Live on January 11, 2012 in Los Angeles, California.

2012 People's Choice Awards - Arrivals

arrives at the 2012 People's Choice Awards held at Nokia Theatre L.A. Live on January 11, 2012 in Los Angeles, California.

2012 People's Choice Awards - Red Carpet

arrives at the 2012 People's Choice Awards at Nokia Theatre L.A. Live on January 11, 2012 in Los Angeles, California.

20th Annual Elton John AIDS Foundation Academy Awards Viewing Party - Inside

attends the 20th Annual Elton John AIDS Foundation Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2012 in Beverly Hills, California.

Miley Cyrus (R) and guest arrive to the

Miley Cyrus (R) and guest arrive to the Vanity Fair Oscar Party for the 84th Annual Academy Awards at the Sunset Tower on February 26, 2012 in West Hollywood, California. AFP PHOTO / ADRIAN SANCHEZ-GONZALEZ (Photo credit should read ADRIAN SANCHEZ-GONZALEZ/AFP/Getty Images)

Premiere Of Liongate's "The Hunger Games" - Arrivals

<> at Nokia Theatre L.A. Live on March 12, 2012 in Los Angeles, California.

Premiere Of Lionsgate's "The Hunger Games" - Arrivals

<> at Nokia Theatre L.A. Live on March 12, 2012 in Los Angeles, California.

Muhammad Ali's Celebrity Fight Night XVIII - Red Carpet

arrives at Muhammad Ali's Celebrity Fight Night XIII held at JW Marriott Desert Ridge Resort & Spa on March 24, 2012 in Phoenix, Arizona.

Muhammad Ali's Celebrity Fight Night XVIII - Show

onstage during Muhammad Ali's Celebrity Fight Night XIII held at JW Marriott Desert Ridge Resort & Spa on March 24, 2012 in Phoenix, Arizona.

Muhammad Ali's Celebrity Fight Night XVIII - Show

onstage during Muhammad Ali's Celebrity Fight Night XIII held at JW Marriott Desert Ridge Resort & Spa on March 24, 2012 in Phoenix, Arizona.

Muhammad Ali's Celebrity Fight Night XVIII - Show

onstage during Muhammad Ali's Celebrity Fight Night XIII held at JW Marriott Desert Ridge Resort & Spa on March 24, 2012 in Phoenix, Arizona.

Muhammad Ali's Celebrity Fight Night XVIII - Show

onstage during Muhammad Ali's Celebrity Fight Night XIII held at JW Marriott Desert Ridge Resort & Spa on March 24, 2012 in Phoenix, Arizona.

Miley Cyrus performs on stage at Muhamma

Miley Cyrus performs on stage at Muhammad Ali's Celebrity Fight Night XVIII on March 24, 2012 in Phoenix, Arizona. The event supports the fight against Parkinson's disease and this year also celebrates Ali's 70th birthday. AFP PHOTO / Robyn BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)

Miley Cyrus performs on stage at Muhamma

Miley Cyrus performs on stage at Muhammad Ali's Celebrity Fight Night XVIII on March 24, 2012 in Phoenix, Arizona. The event supports the fight against Parkinson's disease and this year also celebrates Ali's 70th birthday. AFP PHOTO / Robyn BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)

2012 Billboard Music Awards - Arrivals

arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada.

2012 Billboard Music Awards - Arrivals

arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada.

Australians In Film Awards & Benefit Dinner 2012 - Portraits

(EXCLUSIVE ACCESS SPECIAL RATES APPLY) poses during Australians In Film Awards & Benefit Dinner at InterContinental Hotel on June 27, 2012 in Century City, California.

Australians In Film Awards & Benefit Dinner 2012 - Arrivals

<> at InterContinental Hotel on June 27, 2012 in Century City, California.