A sample of the track, entitled 'Another Day', can be heard below.

If genuine, it will mark one of the first posthumous songs from Jackson since his sudden death in June last year.

Kravitz has previously spoken about his work with the late singer, describing their time in the studio as “amazing”.

Last autumn, another previously unheard Jackson song, 'This Is It', was released alongside a documentary about his ill-fated comeback shows.

It is thought the star also recorded tracks with Akon and Black Eyed Peas star will.i.am.

(by Jason Gregory)