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Demi Lovato and Selena Gomez used to be inseparable. But the Disney darlings hadn't been seen together since Demi entered rehab ... until this weekend!

Selena posted a photo on Twitter of she and her former BFF smiling for the cameras.

The two have known each other since they met on the set of Barney and Friends at six-years-old, becoming even closer as each grew up on television (Selena on The Wizards of Waverly Place and Demi on numerous Disney shows like As The Bell Rings, Camp Rock and Sonny With A Chance.)

Both dated Jonas brothers (albeit at separate times) but the girls seemed to have drifted apart after Selena broke up with Nick and Demi went on tour with the rest of the Brothers.

Demi subsequently landed in rehab after she allegedly punched a backup dancer on her tour, while Selena started dating the most famous 17-year-old on the planet: Justin Bieber.

But while many thought these two had drifted apart for good, last month Selena made it clear that they were still very much besties, saying in an interview, "Many people believe that there is some rivalry between us, whether because of our ages, our music or the programs that we do. But there is no rivalry. Demi and I have been friends since we were six-years-old, from when we first met while working on the TV show, Barney. She is my best friend.”

And now just as Selena seems to be on top of the world with a hot new beau and an upcoming tour, and Demi seems intent on getting back to work, the girls have finally reunited, hooking up for dinner together.