“Amazing job tonight! @SelenaGomez good seeing you :)” the 17-year-old singer captioned the pic.
The day before, Selena showed off her toned bikini bod while lounging around poolside in Miami.
Meanwhile, Austin recently announced his rescheduled tour dates after cancelling his Artist to Watch tour due to his hospitalization for a high temperature, blood clot, and extreme inflammation in his throat.
Bigger pic inside…