Tanja started singing at a very young age, participating in numerous contests and song festivals in Estonia, Russia and Ukraine. In 1998 she won the contest "Utrennaja zvezda" in Jurmala, Latvia and in 2002 she took part of "Fizz superstar 2002" Baltic singing competition. As a musical actress, she has played the lead roles in Fame, Kiss of the Spider Woman and Cabaret.
With the Estonian producer Sven Lõhmus and together with Estonian singer Ly Lumiste, the girls formed the techno duo band Nightlight Duo in 2001. The band released two albums, Jäljed liival, and Miks ma ei suuda su maailma muuta. The latter album won the award for the best album of the year, "Aasta uustulnuk 2002". Nightlight Duo competed twice in Eurolaul, Estonia's selection for the Eurovision Song Contest. In 2002, their song Another Country Song got second place in Eurolaul and a year later their song I can b the 1 came fourth. Both songs were produced and written by Sven Lõhmus. The band disbanded in 2004 due Lumiste's pregnancy and Tanja continued with her musical career.
With the producer and composer Timo Vendt, Tanja created the band Jz Belle in 2004. The first album "Jz Belle" was released in 2004. The second album "Teemant" was released in 2006 and three radio singles were released from this one.
Other bands and shows
Finished with the Jz Belle project, Tanja also starred in the band Sunday Mood with Timo Vendt and the Canadian guitarist Alex Pier Federici, with whom they released an album in English called "Something more" in 2009, with great success in the Baltic countries. In this period Tanja performed in the show "Queen - The doors of Time" in Theatre Vanemuine in Tartu, together with Broadway artist Tony Vincent and Estonian singer Rolf Roosalu. She had also participated in a few Estonian television contests, such as "Laulud tähtedega" in 2010/11, obtaining second place, behind Artur Talvik and Lenna Kuurmaa; and in "Laulupealinn" in November 2011, obtaining second place too. In 2013, Tanja came third in the TV show "Su nägu kõlab tuttavalt".
In 2012, she released her 6th solo album, Gemini. Three singles were released from the album: "Supernatural", "Sind ootan ikka veel" and "All In My Head".
Tanja competed in the Estonian national final, Eesti Laul 2014, for the chance to compete in the Eurovision Song Contest 2014 in Copenhagen, Denmark. She won the national final by her song, "Amazing" with 53 percent of the votes. On 15 March, the song was officially released. She failed to qualify for the final, finishing 12th in the first semi final with 36 points.
After Eurovision
Tanja shared stage with Andrea Bocelli at his Tallinn concert on 28 June 2014. Tanja will also perform with her biggest concert of her career called "Amazing Lie" at the festival Õllesummer in July 2014 in Tallinn. In June Tanja went to Crete to shoot her new music video for her summer single Forevermore. She is the backup juror for Estonian jury panel in the Eurovision Song Contest 2015 in Vienna, Austria, and she will be the spokesperson for Estonia then.
Personal life
In 2016, she married Estonian singer Mikk Saar and has a son with him.