One of The Quietus's favourite bands, AC/DC, recently released their impressive Live At River Plate DVD - a 19-tracked behemoth that revisits their 2009 live show in Argentina, and features interviews with the band and behind-the-scenes footage. We've been lucky enough to be bequeathed three copies of the film, which we're making available as competition prizes. You can get the DVD here, but you could also be one of our winners if you come up with the correct answer to the question below:

What was the name of the world tour which AC/DC played their show in River Plate as part of?

[A] White Lightning

[B] Black Ice

[C] Pink Mist

Send your answers in to comps@thequietus.com with 'AC/DC Competition' in the subject field. To read The Quietus Competition Terms & Conditions, click here.