t.A.T.u. (Russian: Тату, pronounced [tɐˈtu] (listen)) was a Russian music duo that consisted of Lena Katina and Julia Volkova. The singers were part of children’s music group Neposedy before being managed by producer and director Ivan Shapovalov and signing with Russian record label Neformat. t.A.T.u.’s debut album 200 Po Vstrechnoy (2001) was a commercial success in Eastern Europe that made the duo sign with Interscope Records to release its English-language counterpart, 200 km/h in the Wrong Lane (2002). The album was certified platinum by the IFPI for one million copies sold in Europe and became the first album by a foreign artist to debut at number one in Japan. It was also certified gold in the United States and included the international hits "All the Things She Said" and "Not Gonna Get Us". The duo represented Russia in the Eurovision Song Contest 2003 with the song "Ne Ver’, Ne Boysia", finishing third.
t.A.T.u. released the albums Dangerous and Moving and Lyudi Invalidy in 2005 to moderate success after parting ways with Shapovalov. The former was promoted by the international hit "All About Us". The duo ventured into other projects, such as creating their own production company T.A. Music and promoting the film inspired by their story You and I (2008). Their last pair of albums, Vesyolye Ulybki and Waste Management, followed between 2008 and 2009, respectively. t.A.T.u. officially split in 2011, with Katina and Volkova pursuing solo careers. They reunited to perform at special occasions, such as the opening ceremony of the 2014 Winter Olympics, in subsequent years. t.A.T.u. have sold over 8 million records worldwide and rank among the best-selling girl groups.