For Vampire Diaries stars Nina Dobrev (Elena) and Paul Wesley (Stefan), it must seem like Halloween every day on set. Which means, for Halloween, they tend to take the costuming in a direction other than vampire, werewolf, or hybrid. Who did they dress up as this past weekend?!

Nina posted this photo of she and Paul in their Halloween finest, along with the challenge, “Guess what our costumes are?” In the pic, Paul is in a leather jacket and grey beanie (he does love beanies, after all), and Nina is donning a black jacket and a red clutch. To be honest, they look a lot like themselves — or, alternatively, Stefan and Elena circa Season 1 — but we think they are going for a different famous ex-couple: Justin Bieber and Selena Gomez!

Paul especially has the Biebs’ look down with the hat and the eyebrows and Nina doesn’t look un-Selena-like with her long brown hair and perfectly symmetrical face, but we think it’s the fact that they’re together that really makes the costume. Can we talk about how much we love that they are couple costuming it? Their friendship makes us smile.

Who do you think Paul and Nina are dressed as? Share your theories in the comments below!

The Vampire Diaries airs at 8 p.m. Thursday nights on The CW.