Kostas Martakis (Greek: Κώστας Μαρτάκης; born on May 25, 1984 in Athens, Greece) is a popular Greek singer known for his participation in a talent show called Dream Show in 2006 and his participation in the Greek National Final for the Eurovision Song Contest 2008. Shortly after his appearance on Dream Show, he signed a contract with Sony BMG Greece and released his first CD-single in the summer of 2006 titled "Panta Mazi" (Always Together).