Wardrobe disaster: Fergie forgets to look in the mirror before stepping onstage

She may have sold millions of records and have assistants to ensure she looks flawless, but The Black Eyed Peas singer Stacy "Fergie" Ferguson can still have a wardrobe malfunction.

Performing in Wellington, New Zealand, the star danced and sang a selection of her hits, embarrassingly unaware the zip was down in her tight white trousers.

Teamed with a white waistcoat, Fergie showed off her toned physique and would have looked her usual groomed self if it wasn't for the noticeable trouser disaster.

Let's hope the recent-engaged star pays more attention to the outfit she will don for her forthcoming wedding.

Actor Josh Duhamel, 35, proposed to the 32-year-old during a break in Mexico.

The pair who have been dating for three years already share a multi-million dollar house together in Los Angeles.