Justin Beiber's wife Hailey Baldwin changes name to 'Hailey Bieber' on social media (Screenshots)

Hailey Baldwin, 21, has made her marriage to Justin Beiber, 24, official hours after the Canadian singer called her his "awesome wife."

The American model has changed her handle to her married name. Her username is now @haileybieber on Instagram, and she also edited her name to Hailey Rhode Bieber.

But Baldwin still remains @haileybaldwin on Twitter and Hailey Baldwin on her verified Facebook for now.