On The Big Screen

5 Seconds of Summer performed at the iTunes Festival in London yesterday, September 4. This is the first time the boys have performed at the annual event.

This has been quite a year for the Australian band. The boys have performed at the Billboard Music Awards, the MTV Video Music Awards, released their first full album, and announced their first headlining tour.

More videos from their performance can be found under the jump! Did anyone see the boys yesterday?