Miley Cyrus(01 of23)
Open Image ModalMiley Cyrus performs in Times Square during New Year's Eve celebrations on Tuesday, Dec. 31, 2013 in New York. (Photo by Charles Sykes/Invision/AP) (credit:AP)
Miley Cyrus(02 of23)
Open Image ModalMiley Cyrus performs in Times Square during New Year's Eve celebrations on Tuesday, Dec. 31, 2013 in New York. (Photo by Charles Sykes/Invision/AP) (credit:AP)
Miley Cyrus(03 of23)
Open Image ModalFile - In this Aug. 25, 2013 file photo, Miley Cyrus performs a move known as "twerking" at the MTV Video Music Awards at the Barclays Center in New York. The word twerking is on a list of among those words selected for elimination in Michigan's Lake Superior State University's 39th annual batch of words to banish due to overuse, overreliance and overall fatigue. Others include "selfie," "Mr. Mom" and "on steroids."(AP Photo/Charles Sykes, Invision, File) (credit:AP)
Miley Cyrus Hosts The Premiere Of Beacher's Madhouse Las Vegas(04 of23)
Open Image ModalLAS VEGAS, NV - DECEMBER 27: Entertainer Miley Cyrus arrives at the premiere of Beacher's Madhouse Las Vegas at the MGM Grand Hotel/Casino on December 27, 2013 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images) (credit:Getty Images)
Y100's Jingle Ball 2013 Presented By Jam Audio Collection - Show(05 of23)
Open Image ModalSUNRISE, FL - DECEMBER 20: Miley Cyrus performs onstage during Y100's Jingle Ball 2013 Presented by Jam Audio Collection at BB&T Center on December 20, 2013 in Sunrise, Florida. (Photo by Alexander Tamargo/Getty Images for Clear Channel) (credit:Getty Images)
Y100's Jingle Ball 2013 Presented By Jam Audio Collection - Show(06 of23)
Open Image ModalSUNRISE, FL - DECEMBER 20: Miley Cyrus performs onstage during Y100's Jingle Ball 2013 Presented by Jam Audio Collection at BB&T Center on December 20, 2013 in Sunrise, Florida. (Photo by Alexander Tamargo/Getty Images for Clear Channel) (credit:Getty Images)
Y100's Jingle Ball 2013 Presented By Jam Audio Collection - Show(07 of23)
Open Image ModalSUNRISE, FL - DECEMBER 20: Miley Cyrus performs onstage during Y100's Jingle Ball 2013 Presented by Jam Audio Collection at BB&T Center on December 20, 2013 in Sunrise, Florida. (Photo by Alexander Tamargo/Getty Images for Clear Channel) (credit:Getty Images)
Y100's Jingle Ball 2013 Presented By Jam Audio Collection - Show(08 of23)
Open Image ModalSUNRISE, FL - DECEMBER 20: Miley Cyrus performs onstage during Y100's Jingle Ball 2013 Presented by Jam Audio Collection at BB&T Center on December 20, 2013 in Miami, Florida. (Photo by Larry Marano/Getty Images for Clear Channel) (credit:Getty Images)
93.3 FLZ's Jingle Ball 2013 - Press Room(09 of23)
Open Image ModalTAMPA, FL - DECEMBER 18: Miley Cyrus attends 93.3 FLZs Jingle Ball 2013 at the Tampa Bay Times Forum on December 18, 2013 in Tampa, Florida. (Photo by Alexander Tamargo/Getty Images for Clear Channel) (credit:Getty Images)
Z100's Jingle Ball 2013 Presented by Aeropostale - Show(10 of23)
Open Image ModalNEW YORK, NY - DECEMBER 13: Miley Cyrus performs onstage during Z100's Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images for Clear Channel) (credit:Getty Images)
Z100's Jingle Ball 2013 Presented by Aeropostale - Backstage(11 of23)
Open Image ModalNEW YORK, NY - DECEMBER 13: Miley Cyrus (R) poses backstage at Z100's Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Clear Channel) (credit:Getty Images)
Z100's Jingle Ball 2013 Presented by Aeropostale - Show(12 of23)
Open Image ModalNEW YORK, NY - DECEMBER 13: Miley Cyrus performs onstage during Z100's Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images for Clear Channel) (credit:Getty Images)
Z100's Jingle Ball 2013 Presented by Aeropostale - Show(13 of23)
Open Image ModalNEW YORK, NY - DECEMBER 13: Miley Cyrus performs onstage during Z100's Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Clear Channel) (credit:Getty Images)
Z100's Jingle Ball 2013 Presented by Aeropostale - Press Room(14 of23)
Open Image ModalNEW YORK, NY - DECEMBER 13: Miley Cyrus attends Z100s Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City. (Photo by Bryan Bedder/Getty Images for Clear Channel) (credit:Getty Images)
Z100's Jingle Ball 2013 Presented by Aeropostale - Press Room(15 of23)
Open Image ModalNEW YORK, NY - DECEMBER 13: Miley Cyrus attends Z100s Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City. (Photo by Bryan Bedder/Getty Images for Clear Channel) (credit:Getty Images)
101.3 KDWB's Jingle Ball 2013 - SHOW(16 of23)
Open Image ModalST PAUL, MN - DECEMBER 10: (EDITORS NOTE: Retransmission of #455010049 with alternate crop.) Miley Cyrus performs onstage during 101.3 KDWB?s Jingle Ball 2013, at Xcel Energy Center on December 10, 2013 in St. Paul, Minnesota. (Photo by Tasos Katopodis/Getty Images for Clear Channel) (credit:Getty Images)
KIIS FM's Jingle Ball 2013 Presented By T-Mobile In Partnership With Samsung - Show(17 of23)
Open Image ModalLOS ANGELES, CA - DECEMBER 06: Recording artist Miley Cyrus performs onstage during KIIS FM's Jingle Ball 2013 at Staples Center on December 6, 2013 in Los Angeles, CA. (Photo by Jason Merritt/Getty Images for Clear Channel) (credit:Getty Images)
KIIS FM's Jingle Ball 2013 Presented By T-Mobile In Partnership With Samsung - Backstage(18 of23)
Open Image ModalLOS ANGELES, CA - DECEMBER 06: Singer Miley Cyrus attends KIIS FMs Jingle Ball 2013 at Staples Center on December 6, 2013 in Los Angeles, CA. (Photo by Rich Polk/Getty Images for Clear Channel) (credit:Getty Images)
KIIS FM's Jingle Ball 2013 Presented By T-Mobile In Partnership With Samsung - Backstage(19 of23)
Open Image ModalLOS ANGELES, CA - DECEMBER 06: Singer Miley Cyrus attends KIIS FMs Jingle Ball 2013 at Staples Center on December 6, 2013 in Los Angeles, CA. (Photo by Rich Polk/Getty Images for Clear Channel) (credit:Getty Images)
2013 American Music Awards - Show(20 of23)
Open Image ModalLOS ANGELES, CA - NOVEMBER 24: Singer Miley Cyrus onstage during the 2013 American Music Awards at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California. (Photo by Kevin Winter/Getty Images) (credit:Getty Images)
2013 American Music Awards - Show(21 of23)
Open Image ModalLOS ANGELES, CA - NOVEMBER 24: Singer Miley Cyrus performs onstage during the 2013 American Music Awards at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California. (Photo by Kevin Winter/Getty Images) (credit:Getty Images)
2013 American Music Awards - Arrivals(22 of23)
Open Image ModalLOS ANGELES, CA - NOVEMBER 24: Musician Miley Cyrus attends the 2013 American Music Awards at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 American Music Awards - Show(23 of23)
Open Image ModalLOS ANGELES, CA - NOVEMBER 24: Singer Miley Cyrus performs onstage during the 2013 American Music Awards at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California. (Photo by Kevin Winter/Getty Images) (credit:Getty Images)