They kept us on our toes all through the Christmas holidays, documenting their time in St Barths together on Instagram.
They even left us wondering their relationship status multiple times with their flirty posts.
But yesterday, Justin shared a photo that definitely confirms they are indeed, an item.
Taking to IG once more, the Biebs posted a pic of him and Hailey sharing a rather romantic kiss.
The love birds look like they might be in a club somewhere, but one thing's for sure: they're totally into each other.
And in the year that we all became Beliebers, it's safe to say that we're all a little bit (a lot) jealous of Hailey.