Justin Bieber and Hailey Baldwin. Picture: Instagram

Justin Bieber and Hailey Baldwin have reportedly tied the knot.

The couple were seen at the Marriage Bureau at the courthouse in New York City on Thursday, thought to be getting their marriage licence, but it has now been revealed that the happy couple decided to wed there and then and are planning a celebration with family and friends in Canada and it could take place in the next seven days.

A source told People magazine: "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."

Justin confirmed his engagement to Hailey just a few days after he proposed during a trip to the Bahamas last month.

And Hailey has also decided to take a back seat with her career so she can spend time with her fiancé.

Asked why she hadn't booked so many modelling jobs at New York Fashion Week this year, she shared: "I've tried to be really choosy with fashion week going forward, just because I want to have the time to spend being relaxed and being with family - and my fiancé."