These four Sydney born boys - Luke, Michael, Calum and Ashton - are a social media sensation. From posting videos of themselves performing cover versions of hit songs to Youtube, they were spotted by One Direction who invited them as their support act on their first worldwide tour. Little did they know that within a year, their first EP would hit #1 in 48 countries on pre-orders alone, they'd have twitter followers and YouTube hits in their millions, plus a massive family of devoted fans - and all before even releasing their first single.