Miley Cyrus pictures through the years

Miley Cyrus talks to students in a dorm while campaigning for Democratic presidential nominee Hillary Clinton at George Mason University in Fairfax, Virginia, on Oct. 22, 2016.

Miley Cyrus drinks tea in a dorm room while campaigning for Democratic presidential nominee Hillary Clinton, at George Mason University in Fairfax, Virginia, on Oct. 22, 2016.

Miley Cyrus poses at the Los Angeles LGBT Center's 46th Anniversary Gala Vanguard Awards in Los Angeles on Nov. 7, 2015.

Miley Cyrus attends the New York premiere of "A Very Murray Christmas" at the Paris Theater on Dec. 2, 2015.

Miley Cyrus attends "It Always Seems Impossible Until It Is Done: A Night of Music with ONE and (RED)" in celebration of World AIDS Day at Carnegie Hall on Dec. 1, 2015.

Honoree Miley Cyrus poses at the Los Angeles LGBT Center's 46th Anniversary Gala Vanguard Awards at the Hyatt Regency Century Plaza on Nov. 7, 2015.

Miley Cyrus and Dead Petz perform at the Wiltern Theatre in Los Angeles on Dec. 19, 2015.

Miley Cyrus and Dead Petz perform at the Wiltern Theatre in Los Angeles on Dec. 19, 2015.

Miley Cyrus performs with Dead Petz at the Riviera Theatre in Chicago, on Nov. 19, 2015.

Miley Cyrus performs at Barclays Center in Brooklyn on April 5, 2014.

Miley Cyrus performs at Toronto's Air Canada Centre on March 31, 2014 .

Miley Cyrus performs at Toronto's Air Canada Centre on March 31, 2014.

Miley Cyrus performs at Toronto's Air Canada Centre on March 31, 2014.

Madonna and Miley Cyrus perform during "Miley Cyrus: MTV Unplugged" on Jan. 28, 2014, at Sunset Gower Studios in Hollywood, California.

jingle ball nyc

Miley Cyrus backstage at Z100's Jingle Ball 2013 at Madison Square Garden on Dec. 13, 2013.

Miley Cyrus performs during Z100's Jingle Ball at Madison Square Garden on Dec. 13, 2013.

Miley Cyrus lights a joint on stage during the MTV Europe Music Awards at the Ziggo Dome in Amsterdam, Netherlands, on Nov. 10, 2013.

Miley Cyrus performs during the MTV Europe Music Awards at the Ziggo Dome in Amsterdam, Netherlands, on Nov. 10, 2013.

Miley Cyrus performs during the MTV Europe Music Awards at the Ziggo Dome in Amsterdam, Netherlands, on Nov. 10, 2013.

Miley Cyrus at the MTV European Music Awards 2013 at the Ziggo Dome in Amsterdam, Netherlands.

Miley Cyrus attends an album release event at Planet Hollywood in Manhattan on Oct. 8, 2013.

Miley Cyrus attends the release party for her album "Bangerz" at The General in Manhattan on Oct. 8, 2013.

Miley Cyrus attends the release party for her album "Bangerz" at The General in Manhattan.

Miley Cyrus visits "Late Night With Jimmy Fallon" on Oct. 8, 2013.

Miley Cyrus performs on NBC's "Today" show on Oct. 7, 2013.

Miley Cyrus performs on "Saturday Night Live" on Oct. 5, 2013.

Guest host Miley Cyrus, left, and Kenan Thompson in a scene from "Saturday Night Live" on Oct. 5, 2013.

Miley Cyrus opens "Saturday Night Live" during her stint as host and musical guest on Oct. 5, 2013.

Bobby Moynihan, left, Vanessa Bayer and guest host Miley Cyrus in a scene from "Saturday Night Live."

Miley Cyrus poses topless on the cover of the Oct. 8, 2013, issue of Rolling Stone.

Miley Cyrus performs onstage during the iHeart Radio Music Festival Village in Las Vegas on Sept. 21, 2013.

Miley Cyrus arrives at the MTV Video Music Awards at Barclays Center on Aug. 25, 2013.

Miley Cyrus wears Marc Jacobs to attend The Metropolitan Museum of Art's Costume Institute benefit celebrating "PUNK: Chaos to Couture" in Manhattan on May 6, 2013.

Miley Cyrus arrives at the Elton John Oscar Party in West Hollywood, California, on Feb. 24, 2013.

Miley Cyrus attends the Rachel Zoe Runway Show at New York Fashion Week on Feb., 13, 2013.

Miley Cyrus sports a new, short cut.

Liam Hemsworth, an honoree at the Australians in Film 8th annual Breakthrough Awards, poses with his fiancee, Miley Cyrus, on the red carpet in Los Angeles on June 27, 2012.

Liam Hemsworth, an honoree at the Australians in Film 8th annual Breakthrough Awards, poses with his fiancee, Miley Cyrus, on the red carpet in Los Angeles on June 27, 2012.

Liam Hemsworth, an honoree at the Australians in Film 8th annual Breakthrough Awards, poses with his fiancee, Miley Cyrus, on the red carpet in Los Angeles on June 27, 2012.

Miley Cyrus attends Australians In Film Awards & Benefit Dinner at the InterContinental Hotel in Century City, California, on June 27, 2012.

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

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

Miley Cyrus and actor Liam Hemsworth in the audience during Muhammad Ali's Celebrity Fight Night XIII held at JW Marriott Desert Ridge Resort & Spa in Phoenix on March 24, 2012.

"Hunger Games" star Liam Hemsworth and singer-actress Miley Cyrus attend Muhammad Ali's Celebrity Fight Night XIII held at JW Marriott Desert Ridge Resort & Spa in Phoenix on March 24, 2012.

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

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

Miley Cyrus and Liam Hemsworth backstage during Muhammad Ali's Celebrity Fight Night XIII held at JW Marriott Desert Ridge Resort & Spa in Phoenix on March 24, 2012.

Miley Cyrus and actor Liam Hemsworth arrive at the People's Choice Awards at Nokia Theatre in Los Angeles on Jan. 11, 2012.

Singer-actress Miley Cyrus arrives at Nickelodeon's 24th annual Kids' Choice Awards at Galen Center in Los Angeles on April 2, 2011.

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

Miley Cyrus arrives at Nickelodeon's 24th annual Kids' Choice Awards at Galen Center on April 2, 2011.

Miley Cyrus at the 53rd annual Grammy Awards on Feb. 13, 2011, in Los Angeles.

Miley Cyrus arrives at the 53rd annual Grammy Awards on Feb. 13, 2011, in Los Angeles.

Miley Cyrus arrives at the 53rd annual Grammy Awards on Feb. 13, 2011, in Los Angeles.

Miley Cyrus arrives at the 53rd annual Grammy Awards on Sunday, Feb. 13, 2011, in Los Angeles.

Singer Miley Cyrus arrives at the American Music Awards held at Nokia Theatre L.A. Live on Nov. 21, 2010.

Miley Cyrus arrives at the American Music Awards at Nokia Theatre L.A. Live on Nov. 21, 2010, in Los Angeles.

Singer Miley Cyrus arrives at the American Music Awards held at Nokia Theatre L.A. Live on Nov. 21, 2010.

Miley Cyrus performs during the 2010 American Music Awards at Nokia Theatre L.A. Live on Nov. 21, 2010.

Miley Cyrus rehearses for the Much Music Video Awards in Toronto on June 19, 2010.

Miley Cyrus performs onstage during the MTV Europe Music Awards in Madrid on Nov. 7, 2010.

Miley Cyrus poses on the MTV Europe Music Awards red carpet on Nov. 7, 2010.

Miley Cyrus poses on the MTV Europe Music Awards red carpet on Nov. 7, 2010.

Miley Cyrus performs with Bret Michaels in Central Park on ABC's "Good Morning America" on June 18, 2010.

Bret Michaels and Miley Cyrus perform on "Good Morning America" on June 18, 2010.

Miley Cyrus performs in Central Park on "Good Morning America" on June 18, 2010.

Bret Michaels and Miley Cyrus perform in Central Park on "Good Morning America" on June 18, 2010.

Miley Cyrus performs in Central Park, on ABC's "Good Morning America" on June 18, 2010.

Miley Cyrus poses for a portrait in New York, on June 18, 2010.

Miley Cyrus poses for a portrait in New York, on June 18, 2010.

Miley Cyrus performs at the MuchMusic Video Awards in Toronto on June 20, 2010.

Miley Cyrus performs at the MuchMusic Video Awards in Toronto on June 20, 2010.

From Disney star to teen queen, this singer and actress is effortlessly chic in her everyday style.

Singer and actress Miley Cyrus poses for a portrait in New York, on June 18, 2010.

Miley Cyrus rehearses for the 2010 Much Music Video Awards in Toronto, on June 19, 2010.

Miley Cyrus rehearses for the 2010 Much Music Video Awards in Toronto on June 19, 2010.

Miley Cyrus rehearses for the 2010 Much Music Video Awards in Toronto on June 19, 2010.

Miley Cyrus rehearses for the 2010 Much Music Video Awards in Toronto on June 19, 2010.

Miley Cyrus performs at the MuchMusic Video Awards in Toronto on June 20, 2010.

Miley Cyrus performs at the MuchMusic Video Awards in Toronto on June 20, 2010.

Miley Cyrus performs at the MuchMusic Video Awards in Toronto on June 20, 2010.

Miley Cyrus performs at the MuchMusic Video Awards in Toronto on June 20, 2010.

Miley Cyrus performs at the MuchMusic Video Awards in Toronto on June 20, 2010.

Miley Cyrus performs during the Rock in Rio music festival in Arganda del Rey on the outskirts of Madrid on June 6, 2010.

Miley Cyrus performs during the Rock in Rio music festival in Arganda del Rey on the outskirts of Madrid on June 6, 2010.

Miley Cyrus performs during the Rock in Rio music festival in Arganda del Rey on the outskirts of Madrid on June 6, 2010.

Miley Cyrus performs during the Rock in Rio music festival in Arganda del Rey on the outskirts of Madrid on June 6, 2010.

Miley Cyrus from her Live at the O2 concert.

Miley Cyrus performs during her concert at the Rock in Rio music festival in Lisbon on May 29, 2010.

Miley Cyrus performs at the 1515 Club on June 1, 2010, in Paris.

Miley Cyrus at Universal Studios Hollywood on April 23, 2010.

Miley Cyrus performs at the Make-A-Wish Foundation's World Wish Day at The Grove in Los Angeles on April 28, 2010.

Miley Cyrus performs at the Make-A-Wish Foundation's World Wish Day at The Grove in Los Angeles on April 28, 2010.

Miley Cyrus performs at the Make-A-Wish Foundation's World Wish Day at The Grove on April 28, 2010.

Miley Cyrus performs at the Make-A-Wish Foundation's World Wish Day at The Grove on April 28, 2010.

Singer Miley Cyrus performs at the Make-A-Wish Foundation's "World Wish Day" at The Grove on April 28, 2010 in Los Angeles.

Singer Miley Cyrus performs at the Make-A-Wish Foundation's "World Wish Day" at The Grove on April 28, 2010 in Los Angeles.

Miley Cyrus in her "Can`t Be Tamed" music video.

Liam Hemsworth and Miley Cyrus star in "The Last Song."

Superstar Miley Cyrus performs on "American Idol" airing Wednesday, March 24, 2010, on FOX.

Superstar Miley Cyrus performs on "American Idol" airing on Wednesday, March 24, 2010 on FOX.

Actress and singer Miley Cyrus arrives for the premiere of "The Last Song" in Hollywood on March 25, 2010.

Singer/actress Miley Cyrus arrives at the 82nd annual Academy Awards held at Kodak Theatre in Hollywood on March 7, 2010.

Miley Cyrus performs at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Tuesday, Nov. 18, 2009.

Miley Cyrus performs Tuesday at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Tuesday, Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Tuesday, Nov. 18, 2009.

Miley Cyrus performs Tuesday at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Tuesday, Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus, left, performs at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus performs at the Nassau Coliseum on Nov. 18, 2009.

Miley Cyrus performs at Disneyland on Oct. 5, 2008 in Anaheim, California.

Miley Cyrus, left, and Sheryl Crow perform during the VH1 Divas concert on Sept. 17, 2009.

Miley Cyrus, left, and Sheryl Crow perform during the VH1 Divas at the Brooklyn Academy of Music on Sept. 17, 2009.

Miley Cyrus, left, and Sheryl Crow perform onstage during the VH1 Divas concert at the Brooklyn Academy of Music on Sept. 17, 2009.

Miley Cyrus performs onstage during the VH1 Divas at Brooklyn Academy of Music on Sept. 17, 2009.

Miley Cyrus performs during A Time for Heroes Celebrity Carnival sponsored by Disney, benefiting the Elizabeth Glaser Pediatric AIDS Foundation at Wadsworth Theatre in Los Angeles on June 7, 2009.

Miley Cyrus performs during A Time for Heroes Celebrity Carnival sponsored by Disney, benefiting the Elizabeth Glaser Pediatric AIDS Foundation at Wadsworth Theatre in Los Angeles on June 7, 2009.

Singer Miley Cyrus performs during A Time for Heroes Celebrity Carnival, benefiting the Elizabeth Glaser Pediatric AIDS Foundation at Wadsworth Theatre in Los Angeles.