Only a few days after Demi Lovato followed Selena Gomez on Instagram, the "Good For You" singer wished her former BFF a happy 23rd birthday. Our jaws are dropping! What is life?!

CLICK HERE A TIMELINE OF DELENA’S FRIENDSHIP!

Selena wrote that she is "so grateful" to have Demi, and that they'll be an important part of each other's lives no matter what.

Even though they've had some rocky times together and have grown apart over the years, we love that the Wizards of Waverly Place star hasn't forgotten her longtime bestie. No matter what they go through, it seems like they'll always be friends.

Click through to see photos of them together, and let us know if you miss their friendship in the comments!

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