Two very accomplished artists will be taking over Christina Aguilera and Cee-Lo Green's fancy red chairs on The Voice during its fourth season.
A source tells Us Weekly Shakira and Usher are set to replace Aguilera and Green, who have each coached teams on the show -- alongside fellow mentors Adam Levine and Blake Shelton -- for the past two seasons. (The show's third season has just gotten underway on NBC.)
Earlier this month, Aguilera opened up to Ryan Seacrest on his KIIS-FM radio show about her stint on the hit singing competition, admitting she once viewed her job as a coach on The Voice "kind of like a side project."
"[I thought], 'It'll keep me close to my son [Max, 4] in L.A. I don't have to travel," the five-time Grammy Award winner said. "Then it kind of took off, and there goes my free time!"
The Voice source tells Us that Aguilera will use her break from the program to focus on tours and promotional duties surrounding the release of her new album, Lotus; Green is currently working with NBC on a new show of his own.
Both Shelton and Levine are set to return for Season 4.