FergieFergieCast your mind back to the music vid for Black Eyed Peas, My Humps...

You remember the one - a scantily-clad Fergie dancing and jiggling her "lovely lady lumps".

Somebody has now taken the Mickey out of it, in a rather extreme way...

And it's all the handiwork of Alanis Morissette.

She has staged her own version of the video, where she dresses up as Fergie and shakes her thang, but in a v tongue-in-cheek way to a slowed down version of the song.

And it has become an internet hit with around 5 million people viewing it since it was posted on the net.

Some reports have said that Fergie's furious over the vid...

Alanis MorisetteAlanis MorissetteWhilst other whisperings tell of a different tale - that she decided to respond with a calorific treat for Alanis.

A source told the New Zealand Herald: "Fergie thought the video was brilliant. She sent Alanis a cake in the shape of a derriere."

Added LA baker Rosa Leung, who created the ass cake: "A note on the flesh-coloured cake read, 'Alanis, you're a genius. Love, Fergie.'"