The Chemical Brothers for Optimus Alive! 2011

The Chemical Brothers are the second act confirmed to play Optimus Alive! 2011.

The duo will play on 8 July, joining the previously-announced Foo Fighters who will headline on 7 July.

Optimus Alive! 2011 will take place on July 7-9 at Passeio Maritimo de Alges in Lisbon, Portugal.

Three-day tickets with camping are onsale now, priced at £103, while day tickets are £45 per day.

Click here to buy Optimus Alive! tickets.