Sofia Vergara's Emmy Dress Mishap Explained

It was the bombshell rip seen round the world. The split went right down the back of actress Sofia Vergara's sequined Zuhair Murad gown just moments before her sitcom, " Modern Family," won its third Emmy for best comedy series Sunday night.

Then the split went viral, thanks to the actress herself.

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Vergara, 40, not only tweeted a photo of herself being sewn back into the dress, she also tweeted a picture of the damage, exposing a clear view of her rear end, along with the caption, "Yes!!!! This happened 20 min before we won!!!! Jajajajja. I luv my life!!!!"

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The gag seemed like something straight out of "Modern Family," not something that would happen to the show's most glamorous star on TV's biggest night.

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So how did it happen? Vergara appeared on " Good Morning America" today to explain it all.