What a slip up! Nicole Scherzinger reveals her nipple in see-through black dress at the NTAs

By Lucy Buckland, Jennifer Ruby and Sarah Fitzmaurice
PUBLISHED: 19:50 EST, 23 January 2013 | UPDATED: 04:47 EST, 24 January 2013

It was all going so well for Nicole Scherzinger at the National Television Awards - until, that is, the blinding lights of the red carpet turned her plunging black dress see-through.
The resulting nipple flash meant all eyes were no longer on the gorgeous X Factor star's beautiful face but on her plunging gown.
It was unfortunate for X Factor mentor Nicole who had tried her hardest to look sensational at the awards bash, held on Thursday evening at the O2.

What a slip up: Nicole's dress turned see-through in the bright lights

Nicole was dressed head-to-toe in black but managed to reveal a little too much when the flashbulbs went off.
The William Vintage Ossie Clark dress turned sheer in the lights, showing that the singer was braless except for some strategically placed nipple covers.
Although that didn't stop the former Pussycat Doll from flashing a smile as she glided into the show and to be fair to the singer, once she was inside her fashion faux pas was all forgotten.