Miley Cyrus performs on TODAY at Rockefeller Plaza in New York on Oct. 7, 2013. The singer/actress performed three songs, including "We Can't Stop," and spoke with Matt Lauer, telling him, "This is who I am. Being who you are is really easy, if you're true to that."
Cyrus, right, performs in a "Saturday Night Live" skit alongside cast members Bobby Moynihan and Vanessa Bayer in New York on Oct. 5, 2013.
Cyrus performs onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena in Las Vegas on on Sept. 21, 2013.
Cyrus' risque performance to Robin Thicke's "Blurred Lines" at the 2013 MTV Video Music Awards raised eyebrows and reminded viewers that Billy Ray Cyrus' daughter isn't Hannah Montana any more.
Cyrus poses as she arrives for the 2013 MTV Video Music Awards. She shocked the audience later that evening with her flesh-colored, latex underwear and controversial performance.
Cyrus accepts the Choice Style Icon award at the 2013 Teen Choice Awards on Aug. 11, 2013 in Universal City, Calif.
Miley attends the premiere of "Paranoia" on Aug. 8, 2013 in Los Angeles with her boyfriend, Liam Hemsworth.
Cyrus winks during an interview at a radio station in Bad Vilbel near Frankfurt, Germany on Monday, July 22, 2013.
Cyrus performs onstage at the "VH1 Divas" show held at The Shrine Auditorium on Dec. 16, 2012 in Los Angeles.
Cyrus appears on "The Tonight Show With Jay Leno" on Oct. 12, 2012.
Cyrus performs at a City of Hope event honoring Halston CEO Ben Malka with a Spirit of Life award in Los Angeles on Oct. 10, 2012.
Cyrus attends the MTV Video Music Awards in Los Angeles on Sept. 6, 2012. The singer made headlines at the event with a blonde Mohawk-style hairdo very similar to fellow performer Pink.
Cyrus and her fiance Liam Hemsworth, an honoree at the Australians in Film 8th Annual Breakthrough Awards, pose in Los Angeles on June 27, 2012. "I'm so happy to be engaged and look forward to a life of happiness with Liam," Cyrus said.
Cyrus poses in a picture on Twitter with a dramatic new hairdo on Aug. 13, 2012. "Never felt more me in my whole life," she wrote.
Cyrus dazzles on the white carpet at the Billboard Music Awards in Las Vegas on May 20, 2012.
Cyrus and Hemsworth attend Muhammad Ali's Celebrity Fight Night XVIII on March 24, 2012 in Phoenix, Ariz.
Kim Kardashian and Cyrus share a hug at the Elton John AIDS Foundation Academy Awards viewing party in Beverly Hills, Calif. on Feb. 26, 2012.
Cyrus performs at a fundraising dinner for The Trevor Project in Hollywood, Calif. on Dec. 4, 2011.
Cyrus poses during a photocall while promoting her album "Can't Be Tamed" in Mexico City on May 26, 2011.
Cyrus performs during a concert in Rio de Janeiro, Brazil, on May 13, 2011.
Cyrus was in on the joke when she hosted "Saturday Night Live," which featured Vanessa Bayer doing her best Cyrus impersonation, on March 5, 2011 in New York.
Cyrus arrives at the American Music Awards in L.A. on Nov. 21, 2010.
Tish Cyrus, Miley, Demi Moore and Rumer Willis attend Miley's 18th birthday party in West Hollywood, Calif. on Nov. 21, 2010.
Miley takes a break with costars Lina Esco, Douglas Booth, Ashley Greene and Ashley Hinshaw on location for the movie 'LOL' on September 6, 2010 in Paris.
Cyrus, Faith Hill and Billy Gibbons of ZZ Top attend a benefit concert for flood relief on June 22, 2010 in Nashville, Tenn.
Cyrus performs at the 2010 MuchMusic Video Awards on June 20, 2010 in Toronto, Canada.
The Cyrus family, minus Miley: Trace Cyrus, Brandi Cyrus, Noah Cyrus, Tish Cyrus and Billy Ray Cyrus in Hollywood, Calif. in March, 2010.
Cyrus accepts the award for favorite movie actress at the Nickelodeon Annual Kids' Choice Awards on March 27, 2010. Somehow she managed to avoid the ceremony's famous slime, but presenters Katy Perry, left, and Jonah Hill weren't so lucky.
Although she's just 17, Cyrus already has a career any of the "American Idol" wannabes would envy. She served as a guest mentor and performed on the March 24, 2010 show.
Cyrus stars in 2010's "The Last Song," written especially for her by novelist Nicholas Sparks. Her real-life boyfriend, Liam Hemsworth, plays her beau onscreen as well.
Cyrus and the cast of her show, "Hannah Montana," celebrated military families in early 2010 with a special episode. Young people who have deployed military parents were invited to appear in the episode and videotape greetings to their parents.
Hemsworth and Cyrus attend the 18th Annual Elton John AIDS Foundation Oscar Party at Pacific Design Center on March 7, 2010 in West Hollywood, Calif. They kept their relationship low-key at first, but finally admitted it at the Oscars.
Cyrus records her contribution to Simon Cowell's Help Haiti charity single, "Everybody Hurts." The star-studded British single, which raise money for victims of the earthquake in Haiti, is a cover of the R.E.M.'s 1993 ballad. The single made its debut on Feb. 2, 2010.
Miley and mother Leticia Cyrus hang out backstage during the Grammy Awards at the Staples Center in Los Angeles on Jan. 31, 2010.
Britain's Queen Elizabeth and Cyrus shake hands after the Royal Variety Performance in Blackpool, England, on Dec. 7 2009.
Cyrus and Sheryl Crow perform together during the 2009 VH1 Divas concert at Brooklyn Academy of Music in New York on Sept. 17, 2009.
Cyrus accepts the best song from a movie award during the MTV Movie Awards in Universal City, Calif., on May 31, 2009.
The singer-actress and her mother Leticia Cyrus attend the 16th annual EIF Revlon Run/Walk for Women in Los Angeles on May 9, 2009.
Miley Cyrus, left, and her father Billy Ray, center, and actress Demi Lovato attend the British premiere of their film "Hannah Montana" on April 23, 2009.
Cyrus performs "The Climb" during the Academy Of Country Music Awards at the MGM Grand in Las Vegas on Sunday, April 5, 2009.
Cyrus, right, and co-star Lucas Till go out for a ride in a scene from "Hannah Montana: The Movie." In the film, Miley Stewart returns to Tennessee to gain some perspective as the pressures of being "Hannah Montana" begin to take their toll.
Cyrus blows a kiss at the "Hannah Montana: The Movie" premiere at the El Capitan Theatre in Hollywood on Thursday, April 2, 2009.
Cyrus and Justin Gaston, a 20-year-old underwear model, have been seen out and about together. In an April 2009 interview with Teen Vogue, Cyrus described Gaston as her best friend.
Cyrus accepts the Favorite Female Singer award at the 22nd Annual Kids' Choice Awards on Saturday, March 28, 2009 in Los Angeles.
Cyrus poses with a copy of her book "Miles To Go" at a signing at a Los Angeles bookstore on Saturday, March 7, 2009.
Cyrus arrives at the 81st Annual Academy Awards at the Kodak Theatre in Los Angeles on Sunday, February 22, 2009.
Cyrus and her father perform together at the "We Are the Future" kids inaugural concert in Washington on Monday, January 19, 2009.
Surrounded by her young fans, the singer/actress performs on the TODAY show in New York on Friday, July 25, 2008.
Cyrus shows her silly side while co-hosting MTV's "Total Request Live" at MTV Studios in New York on Friday, July 18, 2008.
Cyrus performs on ABC's "Good Morning America" at Bryant Park in New York on Friday, July 18, 2008.
Cyrus performs during Z100's Zootopia '08 concert at Izod Center in East Rutherford, N.J., on Saturday, May 17, 2008.
Cyrus and her mother, Leticia, are seen backstage at the "Idol Gives Back" fundraising special of "American Idol" in Hollywood, Calif., on Sunday, April 6, 2008.
Cyrus performs at 102.7 KIIS-FM's Wango Tango concert in Irvine, Calif, on Saturday, May 10, 2008.
Cyrus signs autographs for young fans at the Magic Kingdom at Walt Disney World Resort in Lake Buena Vista, Fla., on Thursday, May 1, 2008. Cyrus was in town to promote the "Disney Channel Games," a made-for-television, Olympic-style competition that will air this summer on the Disney Channel.
Miley and her father Billy Ray perform "Ready, Set, Don't Go" onstage during the 2008 CMT Music Awards at the Curb Events Center at Belmont University on Monday, April 14, 2008 in Nashville, Tenn.
Cyrus performs during the taping of "Idol Gives Back" at the Kodak Theatre in Hollywood, Calif., on Sunday, April 6, 2008.
Cyrus works the red carpet at the 80th Academy Awards at the Kodak Theatre in Los Angeles on Sunday, Feb. 24, 2008. She turns 18 in 2010, and her eventual rise to the status of billionaire is widely anticipated.
Cyrus, right, joins Cyndi Lauper as a presenter during the 50th annual Grammy Awards held at the Staples Center in Los Angeles on Sunday, Feb. 10, 2008.
Fans of Cyrus participate in the Ultimate Miley Party Bus Tour 2007 in Los Angeles on Nov. 7, 2007. Even in the annals of Disney's vaunted history of childhood icons, there's never been anyone quite like Hannah Montana. She landed on Billboard's list of the 20 top-earning artists of 2007 in the No. 11 spot with $64 million from her CD sales and tour receipts.
Cyrus performs in a scene from her new movie "Hannah Montana & Miley Cyrus: Best of Both Worlds Concert." Tickets for the film, like her concerts, were a hot seller. The film made $31 million at the box office in its opening weekend. "This is like better than front row," Cyrus said of the 3-D film. "You could reach out and feel like you can touch my hand you could see me right then. Right there, right in front of you, which is so fun."
Cyrus makes an in-store appearance at the World of Disney store in New York on June 21, 2007. Disney's "Hannah Montana" album debuted at No. 1 on the Billboard charts, making it the first-ever TV soundtrack to accomplish such a feat. The album features eight songs performed by Cyrus as her on-screen alter ego.
Cyrus, right, and Emily Osment, as Lilly Truscott, star in the "Hannah Montana" episode "Song Sung Bad." The show has become one of the most watched on cable TV.
Billy Ray and Miley star in a season two episode of the "Hannah Montana" show on the Disney Channel entitled ''Me and Mr. Jonas and Mr. Jonas and Mr. Jonas.'' Miley stars as Miley Stewart, a preteen who lives a secret life as a pop star, and Billy Ray stars as her dad and manager, Robby Stewart.
Cyrus talks with patient Alex Wilson, 7, during a visit where she handed out toys and signed photos at the Hasbro Children's Hospital in Providence, R.I., on Thursday, Dec. 20, 2007.
Billy Ray and Miley attend the "Elvis Presley Tribute Concert" on Oct. 8, 1994, at Pyramid Arena in Memphis, Tenn.