Description: No more t.A.T.u. for Russian redhead Lena Katina. The Russian pop songstress announced a new single entitled "Solo", released on March 20, as a lead single of her first album as a solo artist. Produced by Max Martin and Shellback, Lena Katina will be the first Russian to perform on SNL, as she performed the song for the first time alongside two familiar t.A.T.u. singles.