2012 Guys Choice Awards: Justin Timberlake’s Special Date, Emma Stone’s Win and More Backstage Details (PHOTOS)

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Although Spike TV’s 6th annual Guys Choice Awards won’t be on the air until June 9, Celebuzz has got the scoop on what went down backstage at Saturday’s ceremony!

Emma Stone was in great spirits behind the curtain after winning the Hot and Funny antler trophy. The Easy A actress was all smiles and even celebrated her big win champagne.

Meanwhile, Justin Timberlake took everyone by surprise when he walked down the red carpet with someone other than fiancee Jessica Biel.

Who was his special date for the evening?

The lucky lady was none other than combat instructor Kelsey De Santis, who also accompanied the singer to the Marine Corps Ball in November 2011 after she had asked him out in a YouTube video. Timberlake, 30, gushed about De Santis during his acceptance speech for Entertainer of the Year.

“Thank you for inviting me — even for one night — to something so meaningful,” he said about the Marine’s dance after asking his date to stand up in the crowd.

“While you were enlisting, I was a put in a boy band,” he also joked. “You remember that, I’m trying to forget it”

After his speech, JT was spotted catching up Friend With Benefits costar Mila Kunis and frequent collaborator Andy Samberg, who recently announced that he was leaving Saturday Night Live after seven long years.

Mila herself was also quite the social butterfly — talking with Channing Tatum at the red carpet before hanging at the bar with Family Guy creator Seth MacFarlane.

However, Channing found himself in a mini Magic Mike reunion when he ran into Matthew McConaughey backstage. While Matthew was spotted chatting with his costar for a while, he kept close to fiancee Camilla Alves for the rest of the evening.

Check out photos from the event in the gallery above!