Member:
1991-1997 Conception - vocals  
1997-2011 Kamelot - vocals  
Guest musician:
1999 Crest Of Darkness - vocals  
2005 Epica - vocals  
2008 Avantasia - vocals  


Personal information

Born on: 12.03.1970

Roy Sætre Khantatat (born 12 March 1970 in Elverum, Hedmark, Norway), is a Norwegian singer. Commonly known as Roy Khan or simply Khan, he is the former vocalist for the symphonic power metal band Kamelot. He co-wrote most of Kamelot's songs with the band's guitarist and founder Thomas Youngblood since he joined the band.

Personal Life
Roy began singing at a young age. At the age of 17, while in the shower at school, Roy was caught singing "Alone" by Heart, by a fellow student and was offered to join the student's band. After high school, Roy studied opera for three years.

Roy is married to Elisabeth Kjærnes. Elisabeth is featured in Kamelot's "March of Mephisto" music video, and has made an appearance on Kamelot's One Cold Winter's Night live DVD, performing "March of Mephisto", and "Nights of Arabia". Together, Roy and Elisabeth have a son and daughter. Roy wrote the song "Anthem", from Kamelot's Ghost Opera album, for his son, a few weeks before he was born.

Conception
Before Khan joined Kamelot in 1997, he was in the Norwegian progressive metal band Conception. In 2005, Khan reunited with his previous band and played at the 2005 ProgPower USA VI festival on Friday 16 September and Norwegian Scream Magazine's 15 Years & 100 Issues Festival on Saturday 1 October. Khan, guitarist Tore Østby (also known from the band ARK) and the rest of Conception reunited; at the time it was clarified Khan would continue to support Kamelot.

Departure From Kamelot
In 2010, Kamelot was forced to cancel their North American tour across Canada, and the United States of America. It was announced that Roy had fallen ill, and could not perform. It is believed that Roy suffers from anxiety and depression, which led to his illness. Since the announcement was made, Roy has not returned to performing with Kamelot.

In 2011, Kamelot guitarist, Thomas Youngblood, announced in an interview that a religious aspect has been involved with Roy not performing with Kamelot.

On April 22, 2011, Kamelot released a statement saying Khan had elected to leave the band. In the media release, Youngblood wrote that Khan had been given a lot of time to make the decision and the band respected it. Roy himself announced his departure from the band in his blog April 21, 2011.

Source: en.wikipedia.org