Veteran singer Reba McEntire and R&B star Monica have joined the all-star cast of hit new TV talent contest "The Voice."
 
The stars will pair up with the show's coaches Christina Aguilera, Cee Lo Green, Adam Levine and Blake Shelton to help contestants hit the high notes.
 
Australian singer/songwriter Sia Furler, who wrote three songs for Aguilera's most recent album Bionic, and music producer Adam Blackstone have also signed on as advisers on the programme.
 
The series was a big hit when it debuted in America on Tuesday night. It was the highest rated series premiere on a major network since reality show "Undercover Boss" in February, 2010.