She may have been one of the hottest stars on the red carpet in her stunning Zuhair Murad aquamarine gown at the Emmys 2012, but no one would have guessed that Sofia Vergara experienced a disastrous wardrobe malfunction just before stepping onto the red carpet.

The 40-year-old sexy Modern Family actress suffered a terrible fashion faux pas just 20 minutes before hitting the bash where her hit TV show triumphed, sharing snaps of her mishap on Twitter of a broken back zip.

Renowned for her famous hour-glass figure and killer curves, Sofia's derriere proved too voluptuous for its own good as the high end designer dress failed to contain it.

The actress tweeted a snap of the hilarious wardrobe malfunction with the caption: ''Yes!!!! This happend 20 min before we won!!!! Jajajajja. I luv my life!!!!''

Sofia, in high spirits, later thanked her wardrobe team for helping her through the traumatising slip up before she headed onto the stage to pick up the gong for Outstanding Comedy for her show Modern Family, for the third consecutive year.

She wrote: ''20 min Modern Family won!! Dress malfuncion !!! Thank you emergency team!!''

But even if Sofia had collected her award with the Tom Kitten style rip in her dress, she would have still been the sexiest red carpet goer at the bash in the feminine number that did wonders for her figure.

Sofia Vergara's famous curves proved too much for her designer gown last night - after her dress split open, right over her derriere.

The Modern Family star suffered a wardrobe malfunction just 20 minutes before her hit TV show won a prestigious gong at the Emmy Awards.

The 40-year-old actress shared pictures of her fashion mishap on her Twitter page, showing the busted back zip of her Zuhair Murad teal cut-out gown.