5 Seconds of Summer began in December 2011 when Luke Hemmings, Michael Clifford and Calum Hood, who all attended the same school (Norwest Christian College), joined together and started posting videos of themselves performing covers of popular songs to YouTube. Their cover of the Chris Brown and Justin Bieber hit "Next to You" received over 600,000 hits.In December 2011, they were joined by drummer Ashton Irwin,^] and the current 5 Seconds of Summer lineup came to be. They have since amassed over 5 million YouTube views, and a large following on social media sites Twitterand Facebook .On 14 February 2013, it was announced that 5 Seconds of Summer will be supporting One Direction on their worldwide Take Me Home tour. The tour kicked off at the O2 Arena in London on 23 February 2013, and 5 Seconds of Summer will join One Direction for shows in the UK, USA, Australia and New Zealand, including 7 shows at Allphones Arena in 5 Seconds of Summer's home town of Sydney.

5 Seconds of Summer are currently working on their debut album ! :D