Caroline Flack's fans got more than they bargained for last night when the TV presenter accidentally flashed her nipple online.

605,000 Instagram followers were treated to a look at Caroline's left nipple when she forgot to crop out the bottom of her selfie.

Caroline posted the photo just hours before attending Simon Cowell's End of Summer bash in London, but quickly deleted it after noticing her mishap. Unluckily, the photo was doing the rounds online within minutes.

Reposting the properly cropped photo, Caroline didn't seem too fazed by the incident. 

"Bloody el," she wrote, crediting her hair and make-up to celeb MUA Gemma Wheatcroft.

 

Bloody el…. Hair and make up by @gemflossy

A photo posted by caroline (@carolineflack) on

The X Factor presenter was pictured at The Orangery for the Syco event later that night, by which stage she was of course properly covered up.

Wearing a black cap sleeved Halston Heritage dress, Caroline chose to show off her bronzed legs rather than her top half.

Also in attendance at the glam bash were X Factor judge Nick Grimshaw,  Alesha Dixon, The Saturdays' Rochelle Humes, Britain's Got Talent presenter Amanda Holden and a heap of other stars.

We hope Caroline recovered in time to enjoy herself on the night…