Balık Sisters

In 2001, the sisters were finalists at the "4th International de Vivo Voix Competition".

Following the graduation from the conservatory in İzmir, they won the audition at the Cemal Reşit Rey Concert Hall in Istanbul and started singing there. In 1999, the twins entered an audition at the Aspendos International Opera and Ballet Festival in Antalya, where they were discovered by Toma Popescu, an expert lecturer in singing at the Vienna Music Academy. After their further education in Vienna, Didem and Sinem gave several concerts in Europe and also in the United States. The Balık sisters wore traditional Turkish clothing kaftan at their appearances with Turkish music.

The twins were educated in the State Conservatory of Dokuz Eylül University in İzmir, and then attended the master classes of Lia Lantieri (1998), Katia Ricciarelli (2000), Dolora Zajick (2000–2003) and Plácido Domingo (2003–2004). Their teachers were Tanju Nebol, Toma Popescu and Francisco Gutierrez. They continued their education in Prayner Conservatory of Vienna in Austria between 2001 and 2003.

The Balık Sisters are an opera act composed of Turkish identical twin sisters Didem Balık and Sinem Balık (born May 21, 1974). Didem is a mezzo-soprano while Sinem is a soprano. The sisters, who claim to be the only identical twin opera singers performing professionally, are also known by the nickname "the Opera twins." Since 2000, Didem and Sinem have been living and performing in Vienna, Austria.