Fashion Rocks just got bigger.
Maroon 5 has just signed on to perform during the fashion and music extravaganza.
Already announced performers include Jennifer Hudson, Jennifer Lopez, Fergie, Alicia Keys, Carrie Underwood and Usher.
Produced by media giant Condé Nast (publisher of Vogue, W and Details, among many other mags) and hosted this year by Jeremy Piven, Fashion Rocks takes place Sept. 6 at New York's Radio City Music Hall.
A two-hour special airs the next night on CBS.
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