It looks like American Idol isn't the only talent competition that's getting a major facelift. According to Us Weekly, the judges' panel on NBC's hit show The Voice will also be on the receiving end of a makeover for season four. Fans of the sensational singing show will likely be blindsided by the news that veteran judges Christina Aguilera and Cee Lo Green won't be hitting their buttons for much longer. Us Weekly is reporting that the two judges will be replaced by none other than Shakira and Usher.  Just recently the former Disney darling admitted the show has consumed way more of her time than she had planned for. As for Green, it's anyone's guess as to why the Gnarls Barkley singer has bailed. Sources say both Adam Levine and Blake Shelton will return for the fourth season. Consider this just the latest round of musical chairs among the popular talent shows. The Voice is definitely in good company. Over at American Idol, Jennifer Lopez and Steven Tyler were replaced by Mariah Carey, Nicki Minaj and Keith Urban. As for Randy Jackson, he still remains the land man standing.