Nina Dobrev arrives at 'The Beauty Book For Brain Cancer' edition 2 launch party at Le Jardin on December 3, 2015, in Hollywood. Credit: Jerod Harris/WireImage

Party like it's her birthday! Nina Dobrev celebrated her 27th birthday with an emoji-theme bash at Aventine in L.A. on Saturday, January 9.

The Vampire Diaries alum partied with her boyfriend, Austin Stowell, 31, and friends including Nick Jonas, Hailee Steinfeld, Adam DeVine, Chace Crawford, Derek Hough, Julianne Hough and Seth McFarlane. 

"They seem super happy together," an insider at the bash told Us Weekly of Dobrev and her hunky actor boyfriend. "They have a really great genuine connection."

Several guests shared snaps on Instagram of the fun-filled bash, held at the hot spot owned by L.A.'s finest nightlife entrepreneurs and restauranteurs, JT Torregiani and Sylvain Bitton. And as you can see from the pics, all the guests wore their best emoji-theme costumes.

According to the insider, there was even a special piñata emoji! 

HAPPY BIRTHDAY @NINADOBREV! 🎉🎂 #emojiparty | snapchat: adotflo #whatanemojigoodtime 🔑🔑

A video posted by Alfredo Flores (@alfredoflores) on

Dobrev dressed up as a smiling cat-face emoji, with gold cat ears, a painted face and hearts around her eyes.

She even danced around a pole at one point!

Stowell and Dobrev began dating last July and made their first red carpet appearance together at the NYC premiere of his film Bridge of Spies.

"They kissed and held hands a few times but he gave her her space and took a step back to watch her enjoy her special night with her closest friends," the source added of the couple.

Tell Us: What do you think of Dobrev's emoji-theme party?

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