A new song thought to be taken from from Kanye West and Jay-Z's forthcoming joint album has leaked online.

The track, entitled 'That's My Bitch', features a guest appearance from La Roux's Elly Jackson and has been produced by Q-Tip.

It is taken from the forthcoming album 'Watch The Throne', which Jay-Z and West have been recording over recent months.

'That's My Bitch' includes a line where Jay-Z mentions his wife Beyonce.

“If Picasso was alive, he would have made her/ That’s right n*gga, Mona Lisa can’t fade her/ I mean Marilyn Monroe, she’s quite nice, but why all the pretty icons always all white?/ Back to my Beyoncés,” he raps.

At present it is not clear when 'Watch The Throne' will be released.

Meanwhile, West's new studio album 'My Beautiful Dark Twisted Fantasy' was released on Monday (November 22).

Kanye West and Jay-Z ft. La Roux - 'That's My Bitch' (via MrReda905 on YouTube):

(by Jason Gregory)