She is the winner of fourth season of Fabrika Zvyozd (2004), released three albums until present and reached high positions in Russian music charts with several songs.

As songwriter, Dubtsova wrote songs for other artist like Ani Lorak, Timati, Philipp Kirkorov, Polina Gagarina, Alsou, Zara, Slava, Sasha Gradiva, and others.

In 1999, through the friend of her father Andrey Pryazhnikov, the disc with the song "Hijo De La Luna" performed by Dubtsova came to the well-known producer Igor Matvienko, who was just recruiting the participants for a new band.

[1] The group was named Devochki (Russian: Девочки; English: "[The] Girls"), and in addition to Dubtsova, it included three more soloists: Tatyana Gerasimova , Valentina Rubtsova and Olympiada Teterich.

She was noted for duets with such artists and bands as Mumiy Troll, Igor Nikolayev, Bi-2, Aleksandr Ivanov, Ivanushki International, Alexander Rosenbaum, Vladimir Presnyakov Jr., and also she sang a song of her own composition "O nyom" (О нём; "About Him").

In addition, during the singer's stay at the Factory on 29 May 2004 was held Irina's wedding with the soloist of the Plazma band – Roman Chernitsyn.

As a prize, Irina received a convertible Peugeot car, recordings for a solo album and filming for three music videos, as well as the right to represent Russia at the contest of young singers New Wave 2004, in which she subsequently took the second place.

In 2010, Irina Dubtsova, Jasmin, Alsou, Tatiana Bulanova, and Valeria Kudryavtseva recorded a children's lullaby "Spi, moyo solnyshko" (Спи, моё солнышко; "Sleep, My Sun") in support of the Pampers and UNICEF charity project "1 pack = 1 vaccine" to prevent tetanus in newborns and their mothers.

in a duet with the winner of the 2nd season of the show, Viktor Romanchenko, song which she wrote in honor of World AIDS Day.

On 22 July 2014, at the concert hall "Dzintari" at the international contest "New Wave 2014", Dubtsova and DJ Leonid Rudenko released a joint single "Recollect" (Вспоминать).

On 25 January 2015, Dubtsova presented a solo song entitled "Love Me Long" (Люби меня долго) on a big show of the Muz-TV channel, "Party Zone".

On 19 November 2016 Irina Dubtsova received her first "Golden Gramophone Award" for the single "Lyuba – Lyubov'" (Люба — Любовь).