Coldplay's album includes tracks called Lovers In Japan and Strawberry Swing
Coldplay's new single has been downloaded by two million people since it was put online last week.
Violet Hill was made available for seven days as a free download on the band's website.
The song is Coldplay's first single from new album Viva La Vida or Death And All His Friends.
A spokesman for the band said demand was "staggering," adding Violet Hill would have outsold the whole of last week's top 40 singles four times over.
Coldplay's website crashed when the song first went online last Tuesday because of huge demand.
The band's fourth album is released on 12 June, with Violet Hill out now to buy.
Their last album, X&Y, has sold 10 million copies since its release in 2005.
The band are also playing three free concerts next month, including one at London's Brixton Academy on 16 June.