Guy Theodore Sebastian (born 26 October 1981) is an Australian singer-songwriter. He was the first winner of Australian Idol in 2003, and is a judge on Australia's The X Factor. He represented Australia at the 2015 Eurovision Song Contest, finishing in 5th place overall. Sebastian has released eight top ten albums including two number ones. The first seven all gained either platinum or multi-platinum certification. He has also achieved 12 top ten singles, including six number ones. Sebastian is the only Australian male artist in Australian chart history to achieve six number one singles, and places third overall for all Australian acts. Eight of his singles have been certified multi-platinum, including the 9× platinum "Battle Scars". His debut single "Angels Brought Me Here" was the highest selling song in Australia last decade. With 51 platinum and six gold certifications and combined album and single sales of over 3.7 million in Australia, he has the highest certifications and sales of any Australian Idol contestant.