Greek singer. He has released 5 albums, which went platinum in Greece and Cyprus, and several singles that reached the top 10 charts. Kostas Martakis has collaborated with almost all famous Greek singers in live performances. He was chosen to open Jennifer Lopez's concert in Athens in 2009 - the same year that E! Entertainment included him in the 25 sexiest men in the world. He has participated twice in the Greek final for the Eurovision Song Contest. Apart from music, he is an accomplished dancer, television personality and actor.