t.A.T.u. are a Russian pop duo consisting of Lena Katina and Julia Volkova. The two started out as part of the children's musical 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, and that resulted in the duo signing 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 group to reach 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.

Elena Sergeevna Katina, better known as Lena Katina, is a Russian musician who gained fame as one half of the pop/electronica duo t.A.T.u. She started her career at the age of eight, joining the Russian children's act Avenue, soon after that joining Neposedy. In 1999, producer Ivan Shapovalov chose Katina and Julia Volkova for his project t.A.T.u. The duo would later become Russia's most successful pop music act. The group produced several hits, including "All the Things She Said", "Not Gonna Get Us", and "All About Us". Their first single, "All the Things She Said", peaked at No. 1 in nineteen countries, including the UK, Russia, and Australia.