Inside Sophie Turner and Joe Jonas' Vegas Wedding -- and Proof She's Changing Her Last Name! (Exclusive Pics)

Sophie Turner and Joe Jonas Vegas Wedding

ET has obtained the marriage certificate from the couple's surprise nuptials, which was officiated by 'Reverend Elvis Presley.'

What happens in Vegas, stays in Vegas... but not when it comes to weddings!

Sophie Turner and Joe Jonas secretly tied the knot at a local chapel in Sin City Wednesday night. Now, ET has obtained exclusive pics from their surprise nuptials, including the marriage certificate, which reveals that the Game of Thrones star will be changing her name to "Sophie Belinda Jonas."

The ceremony went down just a few hours after the lovebirds walked the red carpet and attended the Billboard Music Awards together. Sophie, chic in a silk jumpsuit by Ukrainian label Bevza, gold bow Loeffler Randall mules and a bouffant veil, was all smiles while meeting Joe at the altar.

 An Elvis Presley impersonator officiated the nuptials, which were attended by a handful of the couple's celebrity pals, including Joe's brothers, Nick and Kevin Jonas, and Diplo, who broke the exciting news via Instagram Stories. 


Check out Sophie and Joe's epic Ring Pop "rings" in this selfie with Reverend Elvis Presley:


While we love that the spontaneous couple had some fun with their wedding, a source tells ET that Sophie and Joe are still planning a bigger, more formal wedding, in Paris, France.

"Joe and Sophie are a couple that loves to have fun and live in the moment, and that's exactly what getting hitched in Vegas was," the source says. "The couple does plan to have a more formal wedding with their family and friends, but this ceremony was just fun. Joe and Sophie are planning to get married in Paris later this year."

Hear more on the newly married couple in the video below!