SOCHI, Russia - Russian female pop duo t.A.T.u., Lena Katina (front, R) and Yulia Katina (front, L), perform during a pre-opening ceremony event for the Sochi Winter Olympics at Fisht Olympic Stadium in the Russian resort town on Feb. 7, 2014. (Kyodo)

SOCHI, Russia - Russian female pop duo t.A.T.u., Lena Katina (R) and Yulia Katina (C), perform during a pre-opening ceremony event for the Sochi Winter Olympics at Fisht Olympic Stadium in the Russian resort town on Feb. 7, 2014. (Kyodo)

Sotschi , 070214 , Er?ffnungsfeier Olympische Spiele im Bild: t.A.T.u. im Vorprogramm Sochi Opening ceremony Olympic Games in Picture T A T u in Pre

Russian duo t.A.T.u. Lena Katina, third from left, and Yulia Volkova, second from left, perform on stage before the opening ceremony of the 2014 Winter Olympics in Sochi, Russia, Friday, Feb. 7, 2014. (AP Photo/Mark Humphrey)

Russain female duo singer Tatu performs at the opening ceremony of the 2014 Winter Olympics at the Fisht Olympic Stadium in Sochi, Russia on Feb. 7, 2014. Nearly 3,000 athletes from 87 countries and regions participate in the 22nd Winter Olympics and will perform and compete during 17-day event. ( The Yomiuri Shimbun via AP Images )

Russain female duo singer Tatu (C) performs at the opening ceremony of the 2014 Winter Olympics at the Fisht Olympic Stadium in Sochi, Russia on Feb. 7, 2014. Nearly 3,000 athletes from 87 countries and regions participate in the 22nd Winter Olympics and will perform and compete during 17-day event. ( The Yomiuri Shimbun via AP Images )

Yulia Volkova (L) and Lena Katina (L-bottom) of t.A.T.u. perform during the Opening Ceremony of the Sochi Winter Olympics at the Fisht Olympic Stadium on February 7, 2014 in Sochi. AFP PHOTO / ADRIAN DENNIS

Yulia Volkova and Lena Katina of t.A.T.u. perform during the Opening Ceremony of the Sochi Winter Olympics at the Fisht Olympic Stadium on February 7, 2014 in Sochi. AFP PHOTO / ANDREJ ISAKOVIC

Yulia Volkova (C-L) and Lena Katina (C-R) of t.A.T.u. perform during the Opening Ceremony of the Sochi Winter Olympics at the Fisht Olympic Stadium on February 7, 2014 in Sochi. AFP PHOTO / JONATHAN NACKSTRAND

Yulia Volkova (C-top) and Lena Katina (C-bottom) of t.A.T.u. perform during the Opening Ceremony of the Sochi Winter Olympics at the Fisht Olympic Stadium on February 7, 2014 in Sochi. AFP PHOTO / JONATHAN NACKSTRAND

Yulia Volkova and Lena Katina of t.A.T.u. perform during the Opening Ceremony of the Sochi Winter Olympics at the Fisht Olympic Stadium on February 7, 2014 in Sochi. AFP PHOTO / JONATHAN NACKSTRAND

07.02.2014, Olympiastadion Fischt, Adler, RUS, Sochi 2014, Eroeffnungsfeier der XXII. Olympischen Winterspiele, im Bild das russische Pop-Duo t.A.T.u. // the Russian pop duo t.A.T.u. during the Opening Ceremony of the Olympic Winter Games Sochi 2014 at the Fisht Olympic Stadium in Adler, Russia on 2014/02/07. Foto Eibner PUBLICATIONxNOTxINxAUT EP_Gro 07 02 2014 Olympic Stadium fishes Adler RUS Sochi 2014 Grand Opening the XXII Olympic Winter Games in Picture the Russian Pop Duo T A T u The Russian Pop Duo T A T u during The Opening Ceremony of The Olympic Winter Games Sochi 2014 AT The Olympic Stage in Adler Russia ON 2014 02 07 Photo Eibner PUBLICATIONxNOTxINxAUT

07.02.2014, Olympiastadion Fischt, Adler, RUS, Sochi 2014, Eroeffnungsfeier der XXII. Olympischen Winterspiele, im Bild das russische Pop-Duo t.A.T.u. // the Russian pop duo t.A.T.u. during the Opening Ceremony of the Olympic Winter Games Sochi 2014 at the Fisht Olympic Stadium in Adler, Russia on 2014/02/07. Foto Eibner PUBLICATIONxNOTxINxAUT EP_Gro 07 02 2014 Olympic Stadium fishes Adler RUS Sochi 2014 Grand Opening the XXII Olympic Winter Games in Picture the Russian Pop Duo T A T u The Russian Pop Duo T A T u during The Opening Ceremony of The Olympic Winter Games Sochi 2014 AT The Olympic Stage in Adler Russia ON 2014 02 07 Photo Eibner PUBLICATIONxNOTxINxAUT

07.02.2014, Olympiastadion Fischt, Adler, RUS, Sochi 2014, Eroeffnungsfeier der XXII. Olympischen Winterspiele, im Bild das russische Pop-Duo t.A.T.u. // the Russian pop duo t.A.T.u. during the Opening Ceremony of the Olympic Winter Games Sochi 2014 at the Fisht Olympic Stadium in Adler, Russia on 2014/02/07. Foto Eibner PUBLICATIONxNOTxINxAUT EP_Gro 07 02 2014 Olympic Stadium fishes Adler RUS Sochi 2014 Grand Opening the XXII Olympic Winter Games in Picture the Russian Pop Duo T A T u The Russian Pop Duo T A T u during The Opening Ceremony of The Olympic Winter Games Sochi 2014 AT The Olympic Stage in Adler Russia ON 2014 02 07 Photo Eibner PUBLICATIONxNOTxINxAUT

T.A.T.U performing during the Olympic Games Opening Ceremonies in Sochi during the Sochi 2014 Winter Olympics on 7th Feb., 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

(140207) -- SOCHI, Feb. 7, 2014 (Xinhua) -- Photo taken on Feb. 7, 2014 shows the pre-show of the opening ceremony for the 22nd Winter Olympic Games in Sochi, Russia. (Xinhua/Fei Maohua) (SP)OLY-RUSSIA-SOCHI-OPENING CEREMONY-PRE SHOW PUBLICATIONxNOTxINxCHN Sochi Feb 7 2014 Xinhua Photo ON Feb 7 2014 Shows The Pre Show of The Opening Ceremony for The 22nd Winter Olympic Games in Sochi Russia Xinhua Fei SP Oly Russia Sochi Opening Ceremony Pre Show PUBLICATIONxNOTxINxCHN