When the Legendary Miss Britney Spears hops a flight, panic in the industry ensues: Is she heading to New York City to debut her new single from B9? Or is she heading off to Hawaii to live out her latest Maui Fantasy? Or perhaps she recently re-watched "Toxic" and decided to enlist as a flight attendant? Nope, nope, and sadly...still nope.

But new Britney was on a mission — to go see her baby sister Jamie Lynn perform at the Grand Ole Opry. (Those country-fied pigtails she was rocking before getting on the plane at LAX should have been a big hint she was about to do somethin' a lil' more Southern.)

Before Jamie Lynn hit the stage to perform last night (March 15), the Piece Of Me icon and her brother Bryan came up on stage in Nashville to introduce their sister.

"Not only is she beautiful and extremely talented, she's my little sister...Jamie Lynn Spears!" Brit Brit excitedly announced to the crowd, exchanging a heartfelt hug with her "Chillin' With You" duet partner before leaving the stage. (Sadly, the two did not perform their Britney Jean ode to chillin' together. Next time!)

"Before we surprised @jamielynnspears tonight!! So proud of our baby sister ❤️❤️❤️," Britney later wrote on Twitter in a photo with Bryan.

Mission accomplished. One big happy family!

Check out photos of Grand Ole Opryney's surprise visit, as well as clips of Jamie Lynn's performance down below.

Britney se emociona ao apresentar sua irmã Jamie Lynn Spears n...

Confira a participação emocionante de Britney Spears no show da sua irmã, ontem (15/03), ao vivo no Grand Ole Opry.Família unida do pop <3www.britneyspears.com.br

Posted by Britney Spears Brasil on Wednesday, March 16, 2016

See Photos from Opening Night of Britney's Remixed Piece Of Me Residency: