authorities have confirmed. Hard drives containing the unreleased songs, show plans, and past and future set lists for her tour were among the items stolen from a rental car used by the singer's choreographer and one of her dancers, according to a police report.

The theft occurred on 8 July, two days before Beyoncé's first Atlanta performance. It will come as a blow to the star, who often goes to extreme lengths to prevent leaks. Atlanta police say an arrest warrant has been issued, but the suspect's name has not been made public.

Choreographer Christopher Grant and dancer Diandre Blue told police they had parked the rented black Jeep Wagoneer and gone inside a nearby food hall. When they returned, the vehicle's rear window had been smashed and two suitcases were missing, a police incident report states. They told police they were "carrying some personal sensitive information for the musician Beyoncé" in the vehicle that was also stolen.

That included "five jump drives containing watermarked music, unreleased music, footage plans for shows past and future, and set list", the report states. Other items reported stolen included a laptop, designer clothes and Apple AirPods. Authorities used tracking information on the laptop and headphones to track where the items may have gone, the police report notes. Authorities also dusted the vehicle for any fingerprints and discovered "two very light prints". It is unclear whether the stolen items have been recovered. The BBC has contacted a representative for Beyoncé for comment.

The singer has worked hard to avoid leaks in the second phase of her solo career, after early albums like Dangerously In Love and 4 found their way online illegally before their release dates. She pioneered the "surprise drop" with her self-titled fifth album - which appeared unannounced on 13 December 2013, complete with artistic videos for each of its 14 songs. Recorded under the code name Lily, the album was released exclusively through Apple's iTunes store, to minimise the number of people with advance knowledge. An extra from one of the video shoots even said that producers did not play any of the Beyoncé tracks on set to avoid leaks. (BBC/Reuters)