Madonna and Justin Timberlake's duet leaked on the Internet

The long awaited collaboration between Madonna and Justin Timberlake has been leaked online.

The song, called 'Candy Shop', appeared on website putfile.com, but was removed due to copyright issues.

It is believed the song - a mix of dance, pop and hip-hop - will appear on Madonna's forthcoming album, which is due to be released in November this year.

'Candy Shop' is just one of several the pop star has worked on with Timberlake and producer Timbaland.

Pharrell Williams and Mika have also been involved with the album.