Whitney Houston(Rex Features)

Poor Whitney Houston. Her first appearance on British television in 10 years and what happens? She almost falls out of her dress.

Whitney's dress straps came undone halfway through her performance and for a moment the audience froze in terror (almost) as we wondered whether the diva could carry on through such a travesty.

Ever the pro though, Whitney managed to storm through her performance (after clinging to said broken dress straps to show all and sundry she was aware of the problem) and completed the latest track from her new album amid huge cheers from the crowds.

Whitney of course isn't the only star to fall foul of a designer mishap. We check out the stars who've suffered a series of embarrassing frock foul-ups.