Selena also shared a shot of her and JUlia holding hands, while also a close up of her delicate arrow tattoo on her thumb.
Julia and Selena deicded to share a cheeky kiss on Instagram as well, because why the hell not?
The BFF's have been hanging out since Sunday night, where the Lose You To Love Me singer attended Jules birthday.
The pair then sang together on Monday night when Selena surprised fans at the Fonda Theater to join sing the gals song Anxiety together, which they co-wrote.
Taking to Instagram, Julia shared the sweetest message thanking her BFF for their last week together.
"I’m kind of convinced these last few days aren’t real," Julia wrote.
"Thank you @selenagomez for the most epic headline show I’ve ever played. I love you beyond words and I’m so happy we finally got to sing our baby together :)"
These two are the cutest.