It came just months after Selena was maid of honour at her best friend Courtney Barry's wedding.
All we wanna know is: where do we sign up to get Sel to be our maid of honour next!?
Even though marriage probably feels like it's a million years away, we're willing to bet you've already thought about who your maid of honour would be.
You want someone who's organised enough to help you pull your big day together, chill enough to keep you calm and humble enough to not try to upstage you by being extra at the wedding!
Clearly, Selena Gomez is that friend.
The singer has been the maid of honor at not one but two weddings recently — the most recent being her cousin Priscilla DeLeon's on Friday.
Priscilla and her hubby tied the knot with hubby Jay Cosme just outside of Dallas, Texas.
The wedding had been years in the making, with Priscilla announcing that Selena would be her right-hand girl in 2016.
Sel seems to have pulled off her maid of honour duties to perfection, surprising her cousin with the wedding dress of her dreams as well as throwing her an epic bachelorette party a few weeks ago.
She also shared a heartfelt speech at the wedding, which has since been shared around social media.
In the video, the 26-year-old can be heard saying that her cousin made her strong," finishing with "I love you."
Of course, Selena looked an absolute dream too. Pics from the wedding show that alongside the rest of the bridal party, Selena wore a long strapless black dress with a thigh-high split. The performer paired the look with black heels and simple jewelry, with her hair in loose waves around her hair.
It came just months after Selena was maid of honour at her best friend Courtney Barry's wedding.
All we wanna know is: where do we sign up to get Sel to be our maid of honour next!?