The group's first single, "All the Things She Said", topped the charts in countries including Australia, Austria, Denmark, Italy, Japan, New Zealand, Switzerland, the United States, and the United Kingdom, but also generated controversy due to the girls kissing onscreen.

Volkova signed a solo contract with Gala Records in June 2011, and released her debut single, "All Because of You", in November 2011.

[2] The song was also released in a Russian-language version under the title "Сдвину мир" (I'll Change the World).

[2] Her worldwide debut single, titled "Didn't Wanna Do It", was released on 21 August 2012.

[3] At the age of 6, Volkova enrolled in music school and began learning how to play the piano.

[4] At age 11, Volkova transferred to a school fostering artistic talent, and three years later left Neposedy to join t.A.T.u.

Creator and former manager of t.A.T.u., Ivan Shapovalov, formulated the image of the duo in order to capitalise on the common fascination and fantasy of schoolgirl lesbians, and to appeal to a diverse fan base.

soon became the most successful Russian group of all time, scoring a number of hits with "All the Things She Said", "Not Gonna Get Us", and "All About Us".

The official blog rejected the claims that she had quit, but stated that both girls would be doing separate solo projects from now on and t.A.T.u.

After the breakup of t.A.T.u., Volkova made an announcement on her YouTube channel, launching her website and mentioning that she was working on a solo album in Moscow and Los Angeles.

[2] The song was recorded in Sweden and was produced by Niclas Molinder, Joacim Persson, Johan Fransson, Tim Larsson, and Tobias Lundgren.

[11] Volkova also announced she would travel to South America for a promotional tour, where she would perform some songs by t.A.T.u.

[13] On 1 March 2012, it was reported by the press that Volkova was one of the 25 artists in the final selection who would be competing in order to represent Russia at the Eurovision Song Contest 2012 in Baku, Azerbaijan.

She entered the competition together with Eurovision 2008 winner Dima Bilan as a duo, with the song "Back to Her Future".

page that Volkova was finishing her second single, titled "Didn't Wanna Do It", due out in July 2012.

[citation needed] A single they had recorded, "Любовь в каждом мгновении" ("Love in Every Moment"), was released as a collaboration rather than as a t.A.T.u.

During a complex surgery to remove the tumour, her laryngeal nerve was damaged, causing her to lose her voice.

The video for the song "Любовь в каждом мгновении" ("Love in Every Moment") was launched as a short film named Together Apart in 2014 as part of project CORNETTO's CUPIDITY.

In April 2021, Volkova announced that she would be standing in the September 2021 Russian legislative elections as the United Russia candidate to represent Ivanovo in the State Duma.

Volkova later underwent two surgeries to restore her vocal cords in Israel and was treated twice in Germany.

This is not even the echoes of the past, this is what I now live in..."[45] In September 2014, Volkova appeared as a contestant on a Ukrainian game show called Lie Detector and made comments considered to be homophobic.

It seems to me that lesbians look aesthetically much nicer..." She also stated the she is not "against gays" and that they are still "better than murderers, thieves, or drug addicts".

[46] Nevertheless, her perspective on male homosexuality sparked outrage on social media, where she was seen as extremely hypocritical and biased.

"[46][47][48] Later that month, Volkova appeared to have addressed the comments at a concert, stating, "[I]t is impossible to love each other and then just forget everything.

On 17 February 2014, Katina posted a video message on her official YouTube channel stating that she would no longer be working with Volkova.

She stated that despite "reasons of severe trepidation on the part of Lena about [Volkova] and [her] behaviour," collaboration between the two was possible, referring to the release of their new single as well as their music video.

The video accompanied their song "Любовь в каждом мгновении" ("Love in Every Moment"), which was recorded together with musicians Ligalize and Mike Tompkins.

[56] The duo publicly reunited again in May 2016 at the 25th anniversary celebration of the children's musical group Neposedy, which both had been members of before the formation of t.A.T.u.