NBC’s "The Voice" has two music superstars lined up to replace Cee Lo Green and Christina Aguilera on this season’s second edition of the music reality show. Joining the lineup will be Usher and Shakira.

Both Green and Aguilera are "expected to return to the show next fall," writes our good frined James Hibberd at EW.com’s Inside TV blog.

Hibberd adds, "The new additions are part of a plan by NBC and producers to develop an ongoing tent of talent for ‘The Voice’ that can be mixed and matched as needed. Given the judges’ level of success and tour schedules, it’s difficult to have any of them appear on the show all season now that NBC has decided to run the series in the fall and spring."

Hibberd quotes the show’s executive producer, Mark Burnett, as saying, "Having award-winning artists as coaches means they need to be able to tour. Whether in the red chair or on tour, our coaches have their chairs for life. This is exactly why, after three seasons, we needed to allow them to rotate out so they can get on the road amongst their fans. Meanwhile, we’re incredibly excited to have singular artists like Usher and Shakira joining the fold.”

Hibberd adds, "Aguilera is releasing a new album and going on tour. Cee Lo is developing new music plus working on a scripted comedy series for NBC based on his life. Blake Shelton and Adam Levine will continue on ‘The Voice’ this spring (and you make your own snarky assumptions about that). ‘The Voice’ recently returned for its third season and though its ratings were down from previous seasons, it still managed to outshine the Britney-fueled second season premiere of Fox’s ‘The X Factor.’"

As many will recall, both Shakira and Usher joined Stevie Wonder during President Obama’s Inaugural to sing Wonder’s funk classic "Higher Ground." Here’s the video: