After hitting up the premiere of xXx: Return of Xander Cage [1] with pals Julianne Hough and Jessica Szohr [2], Nina Dobrev [3] rang in her 28th birthday with a La La Land-themed party on Friday. Nina, who turned 28 on Jan. 9, donned a dress similar to the blue halter one Emma Stone [4] wore in the record-breaking film [5], while Julianne wowed in a yellow number. Derek Hough channeled Ryan Gosling [6]'s character in a suit jacket and matching newsboy cap at the bash, which also brought out Aaron Paul and his wife, Lauren Parsekian. Thankfully, some of the guests documented the fun on Instagram.