Alt-J have celebrated the upcoming 10th anniversary of their 2012 debut album ‘An Awesome Wave’ with a live performance of their track ‘Breezeblocks’ on The Late Show.The three-piece are currently in North America touring with Portugal. The Man in support of their fourth studio album ‘The Dream’, which came out earlier this month.Alt-J stopped by the Stephen Colbert-hosted Late Show in the US last night (February 21) for a special live performance, with the trio opting to play their 2012 single ‘Breezeblocks’.That track featured on ‘An Awesome Wave’, which celebrates its 10th anniversary in May.