She attended Ballet school with her older brother Dmitry Semionov, who is now a principal dancer with the Staatsballett Berlin.

[7] Appearing in Herbert Grönemeyer's 2003 music video "Demo (Letzter Tag)", which was later uploaded to YouTube, brought her to the attention of both the dance community and the general public.

Semionova is one of the featured artists on EuroArts DVD "Divine Dancers Live from Prague", in which she dances a pas-de-deux from the ballet "Manon".

[11] In 2018 Semionova had helped The Beautiful Mind Series company to develop a perfume which will come with the smell of fresh fruits like pear and mandarin as well as freesia and white blossom.

[9] Together they had a baby which was born in January 2017[14] and for whom Semionova needed to leave and cancel any future performances with ABT.