Sergey Galoyan (, born 25 December 1981) is an ASCAP/PRS AwardâÂÂwinning songwriter/producer and DJ, born in Moscow. He is more commonly known as Sergio Galoyan and is of Armenian descent.
One of the creators of the band t.A.T.u., he wrote and produced their first four singles All the Things She Said, Not Gonna Get Us, 30 Minutes, and Show Me Love. He also wrote and produced many other tracks for their first, second and third albums.
Galoyan was born in Moscow on 25 December, 1981, into a musical family; his father was a lead guitarist in a band specializing in Western rock and pop classics. Early in his childhood, he was exposed to classical music and rock bands such as Led Zeppelin, Black Sabbath, Queen, and The Beatles. His musical direction shifted significantly at age 14 after hearing Metallica's ...And Justice for All, which inspired him to study guitar under the legendary Russian jazz guitarist Dmitry Maloletov, known for the "two-hand tapping" technique.
After two years of guitar study, Galoyan discovered DJing and house music, becoming influenced by acts like Daft Punk, Underworld, The Prodigy, and Chemical Brothers. He taught himself to program music on a Delta-C (Spectrum-compatible) computer using FastTracker. He initially formed a band called "The Noise", where he served as lead guitarist, before beginning to produce his own dance tracks at home. Several of these early recordings were picked up by the influential Moscow dance station, Station 2000.
In 1999, Galoyan met producer Ivan Shapovalov, which led to his role as the main songwriter and producer for t.A.T.u.'s debut singles: "Ya Soshla S Uma" ("All the Things She Said"), "Nas Ne Dogonyat" ("Not Gonna Get Us"), "Polchasa" ("30 Minutes"), and "Show Me Love." He also contributed six tracks to the group's 2005 second international album, Dangerous and Moving.
Galoyan has since worked with Keith Flint (The Prodigy), Marilyn Manson, Jennifer Lopez, Valeriya, Clea Halsey and Alsou (on 19).
Galoyan is currently concentrating on his solo DJ project under the name of Sergio Galoyan, which features various vocalists and songwriters from around the world. He is based in Krasnaya Polyana where he works with up-and-coming musicians.
In 2022, Galoyan released the Sargas EP. The music video for the title track was directed by Sofia Rikani and features anime-style characterizations of t.A.T.u. members Julia Volkova and Lena Katina.
In 2025, Galoyan released a Gothic House track Wide Gate, created in collaboration with Ave Trio and featuring the operatic vocals of Alexander Korenkov. This was followed by the release of Found Love, a song originally written for Julia Volkova in 2015 but eventually re-recorded with the artist Drax. The accompanying music video, directed by Maria Skobeleva, debuted in late 2025.
Sparked by its prominent inclusion in the Canadian TV series Heated Rivalry, "All The Things She Said" has achieved a viral comeback in late 2025, racking up over 700 million Spotify streams as U.S. listenership surged by 135% and a 200% spike in new listenersâÂÂ60% of whom are Gen ZâÂÂpushed the original track and its Harrison cover version back onto the global charts.
Galoyan received his higher education at the Russian Institute of Theatre Arts (GITIS), where he studied in the academic department of theatrical production.
In addition to his music production, Galoyan has worked as a director for various visual projects; he directed the music video for his single "Everything" featuring Nire' Alldai, as well as the video for the song "Yad" (Poison) by the singer Nicoletta.
Despite his foundational role in t.A.T.u.'s success, Galoyan's relationship with the group's management and the members themselves has been characterized by intermittent litigation and public disputes. Early in the band's career, he criticized producer Ivan ShapovalovâÂÂs management style, alleging that the young members were exploited and paid disproportionately low royalties.
Following the release of the debut album 200 Po Vstrechnoy, Galoyan filed a lawsuit against Neformat LLC and Universal Music Russia. The album's booklet was styled as a criminal case file and claimed Galoyan had been "detained" in connection with the disappearance of Katina and Volkova. Galoyan argued this was defamatory and harmful to his reputation, particularly as it leaned into stereotypes of "ethnic Armenian bandits." In October 2001, a court ruled in his favor, ordering the withdrawal of the booklets and the payment of damages.
Conflict resurfaced in late 2021 during the production of the tribute album 200 Po Vstrechnoy. Although Galoyan was a primary collaborator on the release, he publicly clashed with Lena Katina after she announced a solo "tribute" concert for 2022. Galoyan characterized the move as an attempt to bypass the original creators and issued a formal legal ban prohibiting Katina from performing any of his compositions, including "All the Things She Said" and "Not Gonna Get Us."
In an interview in January 2026, Galoyan provided further insight into the friction; he claimed that the duo had initially "tried to stop" the Lookport tribute show and had requested significant financial compensation to participate. The rift remained unresolved, he stated that he is waiting for a formal apology from Katina to repair their "internal relationship" before he would consider writing new material for the duo.
He married t.A.T.u.'s PR manager, Sasha Tityanko, after working on t.A.T.u.'s second album, but they divorced soon after.
Singles
Publishers (ASCAP Award) for Song "All Things She Said" as one of the best songs of the year
Winners "All the Things She Said"
Year Award/Record of the Year/Russian Grammy (Golden Gramafon")
The same song was selected as an anthem for Russian Olympic Team during the Paralympic Games in Sochi.
The same song was selected as an anthem for Russian Hockey Team during International Championships.