5 Seconds of Summer is an Australian pop rock band with pop punk elements. Formed in Sydney in 2011, the band consists of Luke Hemmings (lead vocals, guitar), Michael Clifford (guitar, vocals), Calum Hood (bass guitar, vocals) and Ashton Irwin (drums, vocals). Originally YouTube celebrities, the boys are now internationally renowned pop stars, supporting One Direction on their 2013 and 2014 world tours. 5 Seconds of Summer won MTV Buzzworthy's Fan-Favourite Breakthrough Band 2013 award and the Kerrang! Best International Newcomer presented by Troxy 2014 award. Their debut album immediately reached No.1 globally on iTunes in seventy-one countries and topped charts around the world, including the US Billboard chart. With more than 1.5 million albums sold worldwide and total single track sales in the US alone surpassing two million, 5SOS are definitely One To Watch!