"Puzzle" was released in June and helped the band to reach their highest UK Albums Chart position ever, hitting No. 2 in the first week of release, also reaching No. 17 in Ireland, and No. 39 in the overall world charts. The album is certified Gold in the UK, having sold over 220,000 copies, and as of February 2009 has sold over 300,000 worldwide. This album is notable for having somewhat more straightforward song structures and a more melodic overall sound than their previous work, while still retaining some more unusual elements. "Puzzle" was voted the best album of 2007 by Kerrang! and Rock Sound. On 25 August, it was announced that "Machines" would be the next single from "Puzzle", which was released on 8 October.