NBC's The Voice will be returning on Sep. 22. Season seven will feature two new coaches along side veterans, Adam Levine and Blake Shelton. Pharrell Williams and Gwen Stefani have joined the reality singing competition. The first promotional video for the season has been released and features all four coaches for the first time.

Billboard reported that the clip was released on Friday and features Stefani's single, "Hollaback Girl," which was produced by fellow coach Pharrell Williams.

Stefani and Williams recently sat down with Billboard and discussed their excitement about joining the show and Williams opened up about his coaching strategy and how it will differ from the veteran coaches. "My advice is always gonna have a consistent thread of, 'Be you. If it doesn't work for this show, that's okay.' ... You'll see what Gwen and I do. We're gonna take a slightly different approach. All we're gonna do is hold up the mirror and show people how rad they are already," said Williams.


Image courtesy of Zak Hussein/INFphoto.com

The New York Daily News added that NBC also released a promotional picture of the four coaches along with the video clip.