Miley Cyrus was Cody Simpson's childhood crush, and now they're dating. Here's a timeline of their relationship.

Miley Cyrus and Cody Simpson began their relationship as friends.Cody Simpson/Instagram

• Miley Cyrus and Cody Simpson began dating in October 2019, however they've been close friends for years.
• While the duo has spent less than six months together, they've drawn widespread attention for their PDA-filled social media posts.
• From getting matching tattoos to attending family members' weddings together, Cyrus and Simpson have shown few signs of slowing down.

Following Miley Cyrus' divorce from Liam Hemsworth and split from Kaitlynn Carter, the "Slide Away" singer began spending time with Australian musician Cody Simpson.

While their hot-and-heavy relationship seemingly appeared out of nowhere, the two musicians have been friends for years. And despite being together for less than a year, they've already gotten matching tattoos and have packed their Instagram feeds with PDA-filled photos.

Here's everything we know about Cyrus and Simpson's relationship.