In 1994, after hearing him perform, Selim Ozturk and Mehmet Senol Sisli invited Koray to join Kargo as the lead singer.

The album was an instant success, making Kargo the most popular rock band and Koray Candemir one of the most recognizable faces in Turkey.

In 2002 Candemir surprised his fans as he took the role of presenter on the “Sing Your Song” (Sarkini Soyle) music contest which aired on Show TV.

Candemir rerecorded “Sairin Elinde” (In the Hands of the Poet), a major Kargo hit with Athena, a Turkish ska band, in 1998.

That same year he also worked with Sebnem Ferah, who is one of the best known female rock artists in Turkey, at yet another Kargo hit “Kalamis Parki” (Kalamış Park).

In 2005 Candemir sang back vocals for “Kal Yanimda” (Stay With Me) by Manga, Turkish nu metal/rap core band.

In 2006, he recorded “Yeniden Gelsem Dunyaya” for the tribute album for Tanju Eren and “Belki bir gun” (Maybe One Day) for “Barda” (At The Bar) movie soundtrack.