Julianne Hough left her husband, Brooks Laich [1], at home on Sunday for a night out with her best gal, Nina Dobrev [2]. The adorable friends went as each other's dates for the Warner Bros. Pictures and InStyle Golden Globes afterparty. Wearing black in support of the Time's Up initiative [3], Nina showed off her abs [4] in a strapless dress, while Julianne donned a long-sleeved gown. At one point, the ladies actually ended up swapping outfits, as best friends do, for a sweet InStyle video on Instagram.

Aside from looking absolutely fabulous on the red carpet, the two also spent some "girl time" with Lea Michele [5] and Nikki Reed [6], who was there with her husband [7] and Nina's former The Vampire Diaries costar [8] and ex-boyfriend, Ian Somerhalder [9]. We certainly never tire of seeing Nina and Julianne flaunt their incredible female friendships [10].