Emma Stone and Andrew Garfield heard wedding bells last weekend – but not their own.

The duo had front row seats to the nuptials of "Zombieland" director Ruben Fleischer and Stone's publicist, Holly Shakoor. Stone played a starring role in the couple's courtship – she introduced the two – and in their wedding as well, acting as the officiant.

Seriously, just when you thought she couldn't be cooler, we learn she does weddings.

"She was very eloquent and composed, and didn't seem nervous at all," a witness told Us Weekly. "She talked about how she met Holly six years ago and then how Ruben directed her in 'Zombieland.'"

Stone is Ruben's leading lady again in "Gangster Squad," in theaters Jan. 11.

"Modern Family" star Sofia Vergara, another of Shakoor’s clients, also attended the wedding, tweeting pictures throughout.

"Everyone was cheering and clapping" after the ceremony, the anonymous attendee told Us Weekly, adding that Garfield was beaming at his beau. "You could tell he thought she did a great job, he had a big smile and was listening to every word she said."

But, more importantly, do you think she'd be willing to officiate one of our weddings?