Beyoncé's choreographer and one of her dancers say thieves broke into their car and stole several items, including a flash drive that contained her unreleased music. Christopher Grant and dancer Diandre Blue called 911 on July 8 to report that their car window had been smashed and suitcases had been stolen in Atlanta.

Atlanta police are investigating after an unidentified suspect stole Beyoncé's unreleased music, plans for show footage, and past and future set list, according to a police report. Beyoncé,

The break-in happened on July 8, shortly after 8 p.m., in a parking deck on Krog Street, just two days before Beyoncé's Cowboy Carter tour kicked off in Atlanta.

A suspect stole "water marked music, some unreleased music, footage plans for the show and past and future set lists," according to an Atlanta Police incident report.

Beyoncé added a mechanical gold horse to her Cowboy Carter Tour set during the emotional performance of her country ballad "16 CARRIAGES" at her Atlanta tour stop on July 10. The horse replaced the suspended red convertible the singer usually rides during the performance of the song.

Beyoncé is headed to her Atlanta for the next "Cowboy Carter" tour-stop. Here's what fans should know before getting to Mercedes-Benz Stadium.

Photo gallery shows how concertgoers in Atlanta reimagined traditional American symbols to make them their own.