A new Michael Jackson song has been played for the first time.

'This Is It' features backing vocals by the singer's brothers and is due to be released as part of a new album on October 26.

The same-titled Double CD, which is comprised of unreleased versions of the singer's songs, is connected to the forthcoming Michael Jackson film documentary, This Is It.

Jackson is known to have recorded a wealth of new songs before his sudden death in June.

But, at present, it is not clear whether the star wrote 'This Is It', or when it was recorded.

Two different versions of the song will be included on a same titled double CD, which also original versions of Jackson's biggest hits.

Previously unreleased versions of the singer's songs and an unheard spoken word poem entitled Planet Earth will also feature.

The new song and album are connected to the forthcoming Michael Jackson film documentary, This Is It.

Directed by choreographer Kenny Ortega, the movie This Is It has been created from over 100 hours of behind-the-scenes footage of Jackson as he rehearsed for his ill-fated London comeback shows.

It is due to go on general release for two weeks from October 28.