Guy Theodore Sebastian (born 26 October 1981) is an Australian pop, R&B, and soul singer-songwriter. He was the first winner of Australian Idol in 2003, and was a judge on Australia's The X Factor between 2010 and 2012. Sebastian has released seven top ten albums including two number ones, which have 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. Seven of his singles have been certified multi-platinum, including the 9× platinum "Battle Scars".