Cameo Kings: R&B's 25 Best Featured Guests

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  • T-Pain
  • Rihanna
  • Nate Dogg
  • R. Kelly
  • Mary J. Blige
  • Kelly Rowland, Justin Timberlake, John Legend
  • The Weeknd
  • Jeremih
  • Justin Timberlake
  • Charlie Wilson
  • Trey Songz
  • John Legend
  • Faith Evans
  • Akon
  • Frank Ocean
  • Miguel
  • Erykah Badu
  • Alicia Keys
  • Ne-Yo
  • Beyoncé
  • Sleepy Brown
  • Kelly Rowland
  • Usher
  • Cee-Lo
  • Chris Brown
  • Mariah Carey

2. R. Kelly

R. Kelly's choir-boy voice and chart-topping résumé have landed him roles on classics by Biggie ("F-----g You Tonight") and hits by Diddy ("Satisfy You") and even Cassidy ("Hotel").

(Photo: Christopher Polk/Getty Images for Coachella)