Among the competing artists was former Cypriot Eurovision representative Constantinos Christoforou (1996, 2002, 2005) and former Bulgarian Eurovision representatives Deep Zone (2008). Among the songwriters, Mike Connaris composed the Cypriot Eurovision entry in 2004. On 29 January 2010, "Nothing Is Real", composed by Nasos Lambrianides and Melis Konstantinou, was withdrawn from the competition (in order to avoid splitting votes with their other selected song) and replaced by "Waiting" performed by Andreas Economides. On 3 February 2010, "Play" performed by Deep Zone was disqualified as the song was released on YouTube and other websites before the broadcast of the final.