Nemanja Kostic, aka Noone Costelo, was born in Belgrade, Serbia. Costelo showed his first interest in music production 1997. In 2001 he began producing and mixing electronic music. He DJ's regularly in Belgrade clubs such as: Club Peoples, Club Office, Movie Bar, Schnapps Bar... In 2009, Costelo performed with great success at the IAC Festival in Brussels. In 2010 he participated on Exit Music Festival. Right after, he released more than 30 releases for various records labels (as DJ Koja).