Dating your childhood crush can work for Justin Bieber and Hailey Baldwin.

She met Justin backstage. From parasocials to friends, from courtiers to lovers.

The lovebirds are gracing carpets and magazines, and blessing the Internet.

Check out Hailey and Justin's friendship-turned-romance and their four-year marriage below.

Hailey, 12, on the TODAY show with Justin. Stephen Baldwin uncovers her pivotal day.

Justin and Hailey meet again at the premiere. In Selena's company, Justin became good friends.

A picture of Justin and Hailey at Mr. Chow. New Jersey diner date follows movie date.

Justin and Hailey's photos and videos naturally spark rumors of their romance.