Julianne Hough, Nina Dobrev Get Cute On Selena Gomez Party Bus

If you needed more proof that Selena Gomez’s 21st birthday was the biggest and best occasion of the year, here it is: Sel had yet another par-tay over the weekend, and attendee Julianne Hough posted a few primo pics on her Instagram feed, making us wish we’d been invited to this truly kick-ass night out. (If you didn’t need more proof, and want to just quietly mourn your absence from Selena’s birthday shindig whilst sobbing quietly into a vat of cheese…well, carry on, and you don’t have to read anymore.)

Not that we’d expect any less from Selena, but this was one seriously stylish event, with lots of ladies decked out in headscarves, silk, and fringe. The bohemian glam vibe? All part of the party plan: The inside scoop from People is that this was a gypsy-themed bash. And if you take a peek at Julianne’s photos, you might catch a glimpse of more than one famous face in the well-dressed crowd; not only was the “Safe Haven” star in attendance, but her BFF (and our perennial favorite girl crush) Nina Dobrev was also there…as was Justin Bieber, who stopped by to wish his ex (or is she?!) a very happy 21st. Alas, he didn’t stop to join the crowd in taking selfies. One of those background blurs could totally be him, though.