Ayà Âe Sibel Tüzün (born 29 September 1971) is a Turkish singer, songwriter and composer.
Sibel began her musical education at the TRT Istanbul Children's Choir. During her secondary school years she joined the Youth Choir of TRT where she met Gökçen Koray, Cenan Akñn and Hikmet à Âimà Âek.
She showed an interest in pop and rock music during her years at Beà Âiktaà  Atatürk Anadolu Lisesi, culminating in a third-place finish in a Song Contest among high-school students in Turkey.
In 1988, she enrolled in Istanbul University's famous Music Conservatory. In 1990, she entered Eurovizyon à Âarkñ Seçmeleri with the song Kime ne, to choose Turkey's song for Eurovision - She came 9th. In 1991, she decided to pursue a professional musical career, signing up with the Raks Müzik label.
Her first solo album Ah Biz Kñzlar was released in 1992. The next year was spent on an exhaustive tour. After working with Robert Bricknell in London for a while, she returned to Turkey and released her second album, Nefes Keser Aà Âklar in 1995. This too was extremely successful, proving that her debut was no flash in the pan.
After completing a 1997 tour of Europe, Sibel started her own production company Arinna Muzik'. She produced her album Hayat Buysa Ben Yokum Bu Yolda ("If This Is Life, I'm Not In") end released it in 1998; it contained eight songs with lyrics written by Sibel. She scored a hit with "Yine Yalnñzñm" in 2002.
By 2003, she released her fifth album, Kñrmñzñ (Red). Her sixth album, Kñpkñrmñzñ (Crimson) which included Greek versions and remixes of songs of Kñrmñzñ.
Sibel Tüzün represented Turkey at the Eurovision Song Contest 2006 which was held in Athens with the song Süper Star (Superstar). She also recorded English and Greek versions of the song.
In 2010, Tuzun returned with the album Saten, in which every song on the EP had a music video made for it. In support of the Saten album, Tuzun performed a tour throughout Turkey, and eastern Europe.