5 Seconds of Summer opening for Hot Chelle Rae

It has been a big year for the lads, who are all still in high school - they've taken social media by storm, with over 100,000 Twitter followers and millions of views on Facebook.

5SOS are releasing their debut EP later this year, having already reached #3 on the iTunes charts with their acoustic release, Unplugged.

They will be opening the tour for all shows but Perth, joining Hot Chelle Rae and Cher Lloyd on stage.

Whatever World Tour 2012 Australian dates:

Monday October 22 - Enmore Theatre, Sydney
Tuesday October 23 - Convention Centre, Brisbane
Friday October 26 - Festival Hall, Melbourne
Sunday October 28 - Royal Theatre, Canberra
Tuesday October 30 - AEC Theatre, Adelaide
Thursday November 1 - Astor Theatre, Perth (5SOS not appearing)