Demi Lovato and Selena Gomez set their joint fans' hearts aflutter on July 14 when the two former Disney stars gushed about each other's new music on Twitter.

On Friday, Lovato sent her longtime friend some love for her latest single, tweeting, "Loving your new song Fetish, we've come a long way since our Barney days!"

Hours later, the Revival pop princess returned the favor, responding, "Yes we have. Just listening to Sorry Not Sorry! You slay as always. So happy for you!"

See their cute conversation, below:

So when's that Princess Protection Program sequel, ladies?

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