NBC has picked Blake Shelton as the fourth and final coach of the new musical competition show 'The Voice.'  Shelton joins coaches Maroon 5 frontman Adam Levine, pop star Christina Aguilera and singer Cee Lo Green, who we most recently saw as Gywneth Paltrow's duet partner on the Grammy Awards.

Shelton is no stranger to being a judge on television. In 2007, the quick-witted country singer was a judge on 'Nashville Star,' and he was a guest judge on NBC's 'Clash of the Choirs' as well.

"I’m not sure ‘The Voice’ knows what they signed on for by bringing me on the show," jokes Shelton in an official statement. "I know this for sure: Christina, Cee Lo, Adam and I are going to have a blast and I am extremely excited to be part of a show that recognizes true vocal talent."

Like 'American Idol,' viwers will ultimately decide which singer wins the grand prize on 'The Voice,' but not before the celebrity coaches narrow the contestants down to their Top 4. On the show, which will be hosted by Carson Daly, each star coach will have a roster of contestants who they will mentor. The coaches will enlist the help of songwriters, personal friends and producers to help make unknown singers shine, and they will share advice and tips of the trade with the contestants they choose to mentor.

Only the top singers from each coach's group will be able to perform on the live stage shows, and at the very end, each coach will have their best contestant compete in the finale. The competition will end with a live performance show, with one grand prize winner securing a recording contract and $100,000 cash.

As for their pick of Shelton, NBC's Executive Vice President of Alternative Programming Paul Telegdy says he was chosen because he is at "the top of his game right now," and the network wanted the panel to have a strong country presence. Telegdy adds, "Not only is he incredibly charismatic, but his passion for collaborating with and bringing the best out of other talented artists makes him the perfect choice to round out this ‘Dream Team’ of musician coaches."

'The Voice' debuts on NBC on Tuesday, April 26 at 9PM ET.