Apple's iTunes Store blundered with Bjork's new album this week, mistakenly putting it on sale a full two weeks before the Icelandic artists official album release date.

Bjork's sixth full-length studio album – Volta – was made available overnight between Monday and Tuesday morning on the store.

It's likely to be a popular release, and was given poll position with its own advertising box which was visible at the top of the iTunes Store browser window.

The album's official release date has been pegged for 7 May. It was produced by Björk, who collaborated with the likes of Timbaland, Antony, Lightning Bolt's Brian Chippendale, percussionist Chris Corsano, African collective Konono Number 1, kora virtuoso Toumani Diabaté, Chinese pipa player Min Xiao-Fen, and a ten-piece Icelandic brass section.

This isn't the first time iTunes has accidentally released an album early: Oasis's last album, Don't Believe The Truth also appeared before its release date on the iTunes Store in Germany, as did a recent release from The Shins.