Green Day, Biffy Clyro, Tame Impala and Django Django join Portugal’s Optimus Alive 2013

Line-up continues to grow for three-day summer bash

Green Day, Biffy Clyro, Tame Impala and Django Django have been added to the line-up for this year’s Optimus Alive festival in Portugal.

They join previously announced headliners Kings Of Leon and Depeche Mode. Other new acts added to the bill include Mercury Prize winners Alt-J, Editors, Twin Shadow and Of Monsters and Men.

Optimus Alive is held in Oeiras, Portugal and last year saw appearances from The Stone Roses, The Cure, Radiohead, Florence & The Machine and Justice. The festival runs from July 12-14 and tickets are available now priced at around £105 for a weekend pass with camping.

For more information go to Meanwhile, Biffy Clyro frontman Simon Neil this week claimed Scottish independence is worth “a shot”.

Speaking to NME, the singer claimed that “the time is now” for Scotland to become an independent country. “The way the world’s going, we may as well give [Scottish Independence] a shot,” he said. “The time is now. The fucking world is falling apart. Scotland has really good oil money, we’ve got renewable energy, we have ways of moving forward and we’re in a strong position to make it happen.”

Neil – who also joked that he and his bandmates could soon try “making a play for the Scottish National Anthem” – added: “I don’t know what we’re getting from London apart from a lack of control over our own future. It doesn’t mean we don’t love England or Wales.”