07/22/2008 AT 02:35 PM EDT
It's Fashion Rocks's fifth anniversary – and organizers have assembled a glittering roster of performers to mark the occasion.
, Justin Timberlake
and Mariah Carey
are among the musical heavyweights expected to take the stage at the Sept. 5 concert at New York's Radio City Music Hall. Officially the beginning to Mercedes-Benz Fashion Week, the star-studded event will also feature celebrity presenters to be announced at a later date.
According to organizers, other scheduled performers include Rihanna
, Chris Brown
, rapper Lil Wayne and Welsh soul singer Duffy.
The event, which will benefit Stand Up to Cancer, will also be recorded and broadcast on CBS on Sept. 9 (9 p.m. ET).