Usher fans who were planning to see the 33-year-old hit maker at Aloha Stadium in December should make other plans for the evening. 

Attorneys representing Usher notified the Honolulu Star-Advertiser today that Usher will not be performing, and that the promoter, Memphis-based NuDawn Entertainment, "never had the authority to represent [Usher] in any capacity" and that Usher had "not approved or otherwise granted permission" to the promoter make any commitments on his behalf.

The letter, which was also sent via email to NuDawn Entertainment, described the Aloha Stadium concert as an "Unauthorized Event" and demanded that NuDawn run advertisements "stating that the promoter of the Unauthorized Event never had permission to book the Unauthorized Event and [Usher] will not be appearing."