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Alicia Keys will don her teaching hat for the upcoming season of NBC's "The Voice." reports that the singer has signed on to mentor the contestants on Pharrell Williams' team. 

The singer is the latest big name to grab a mentoring role on the next installation of the hit competition series.  Coach Blake Shelton has enlisted country act Little Big Town, while Stevie Nicks will team up with Adam Levine's squad.  New coach Gwen Stefani didn't have to look far for her team's mentor because she enlisted her own husband, Gavin Rossdale. 

Season seven of "The Voice" will kick off on Tuesday, September 22nd at 8:00 p.m. Eastern on NBC. 

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