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Julia Volkova was Lena Katina's partner in the Russian pop duo t.A.T.u. The group gained international fame in the early 2000s with their controversial image and catchy pop songs. Their debut album, "200 km/h in the Wrong Lane," was a commercial success, selling over 2 million copies worldwide. t.A.T.u. represented Russia at the Eurovision Song Contest in 2003, finishing third with their song "Ne Ver', Ne Boysia, Ne Prosi."