We guess these girls really have gotten close on tour! LOL!
The 23-year-old hosted a party for her Revival tourmates, and she even shared a friendly kiss with Ruby Carr from her opening band Bahari.
Watch the moment (below)!
How Katy Perry of her!
And speaking of Miz K.P. — Selly also jammed out to her appropriately-themed song Fireworks to celebrate the holiday:
A video posted by Selena Gomez Snapchats ├óΓäó┬í (@selenasnapchats) on Jul 4, 2016 at 11:17pm PDT
We wonder if the Swifties will read into Selena having such a Katy-themed bash!?