Think your star is on the wane? Not as well liked as you once were?

Well, attempt to change everybody's minds with a celebrity reality show demonstrating how down-to-earth you are... and end up as a laughing stock and bigger has-been than ever before.

It was the success of The Osbournes which resulted in scores of C-listers clamouring for a slice of the celebreality pie - with varying degrees of success.

Find out which has-beens really should have refused to let the cameras in...

- Gallery: Reality bites

- Gallery: On-screen irritants