Machine (MACHINE) is a South Korean idol group produced by XOentertainment, consisting of members Park Chanyeol, Kai, Oh Sehun and Byun Baekhyun. They debuted in 2013 with dance song "History" and won numerous awards for their debut track and also rookie group of the year. Later in the year they released their first full legnth album, Silver Metal, named after their fanclub's color, consisting of title song "Machine" and tracks Heart Attack, Let Out the Beast, Mama, Two Moons, 365 and History. In 2014 they released "Wolf" and "What is Love" in collaboration with label mate Black Pearl.