Grapevine High's Post Malone collab

Post Malone will have some help from his alma mater when he performs at AT&T Stadium on Friday.

• The Grapevine High School marching band will serenade the rockstar's fans before his concert.

Why it matters: Post Malone's North Texas pride runs deep — he has gifted Crocs to Chicken Express patrons and Grapevine high schoolers, helped open a Posty-themed Cane's in Dallas and rooted for the Dallas Cowboys even when they aren't great.

The intrigue: Post Malone, born Austin Richard Post, created his first hip-hop mixtape as a student at Grapevine High School.

• His senior year, his classmates gave him the superlatives "most likely to be famous" and "best dressed."

The latest: The program director at 102.9FM and 96.7FM invited Grapevine High School to perform outside AT&T Stadium. Watch how they reacted.

• The band got permission to perform some of Posty's songs and plans to rehearse this week.
• "The students are extremely excited and can't wait to be part of this opportunity," James Rees, the GHS Director of Bands, tells Axios in a statement.

The bottom line: Seasons changed, but Post Malone's hometown pride didn't.