Alcazar

Alcazar was a Swedish Eurodance group which has established themselves as one of Sweden's most successful music groups with a string of hits since their debut single in 1999. Worldwide, Alcazar sold over 12 million records between 2001 and 2004. Alcazar have also had success around the world with their song "Crying at the Discoteque", having charted in countries such as USA, Brazil, Australia, Japan and most countries in Europe. Alcazar disbanded indefinitely in August 2011 after a concert at Stockholm Pride.

source: Wikipedia