We smell a new squad in our midst!
However, it appears the epic collaborative performance gave an even cooler gift in the form of new best friends, Blue Ivy Carter and Apple Martin.
For the snap, the Oscar winner wrote:
Selena Gomez is going to be the best big sister ever!
Sure, she might have quite a few years on her lil' sis, but we can just tell Selenita is going to do everything for Gracie.
The Come & Get It temptress was spotted already giving her sister a taste of being a girly girl as they stepped out alongside their momma for some breakfast and then shopping at the Topanga Mall.
We're not sure if Selenita bought any discounted clothing, but we wouldn't be surprised to hear that she spoiled Grace with a few cute items!
Perhaps she splurged on some designer baby duds??
[Image via FameFlynet Pictures.]