NBC's hit series "The Voice." will double to two hours on April 30 and May 7 to showcase pivotal rounds in the singing competition.
That's not the only change, returning coaches Adam Levine and Blake Shelton will be joined by newcomers Usher and Shakira. They're stepping in for Christina Aguilera and CeeLo Green, who are taking a break from "The Voice" to focus on their music and other projects.
"The Voice" begins its new season Monday, March 25th at 8pm.








