UPDATE: Justin Bieber and Hailey Baldwin are married!

It turns out Justin Bieber and Hailey Baldwin did get married!

Alec Baldwin, Hailey's uncle, has confirmed that Justin Bieber has, in fact, married his niece!

The actor revealed the couple, who were spotted at the Marriage Bureau at the courthouse in New York City last week, have tied the knot. 

He said: "They just went off and got married and I don't know what the deal is. We text Hailey every now and then."

RELATED: Justin Bieber's confirmed his engagement with adorable instagram post

Advising Bieber to do plenty of work, Alec also recommended the newlyweds spend plenty of time together, though he won't be having a sit down chat with the pop star about how to treat his niece.

Alec's comments come after Hailey took to Instagram on Friday to deny she and Justin had married. 

She wrote: "I understand where the speculation is coming from, but I’m not married yet!"

It comes after the pair were spotted at the NYC courthouse, where it was thought they were picking up their marriage licence, but it was later claimed they had tied the knot there and were planning another celebration in Justin's native Canada.

A source said at the time: "They went ahead and did it without listening to anyone. They're going to have a big blowout, in front of God and everyone they love."

We wish the happy couple all the best for the future!