We don’t know about you, but we are PUMPED for Season 4 of The Voice! And with superstars Usher and Shakira joining as coaches, it’s hard not to be.

Each season, the coaches choose a celebrity guest mentor to help them out and offer guidance and advice for their contestants during the battle rounds. Past mentors have included Green Day’s Billie Joe Armstrong and Alanis Morissette.

So ... who will be the mentors for this season?

Country lovers, you’ll be happy to hear that Adam Levine has chosen Hillary Scott of the hit group Lady Antebellum. “Maroon 5 and I recorded a song with her for our last studio album and we had a great time collaborating in the studio,” Adam told Access Hollywood.

Though you may have expected Hillary to be part of Blake’s team, Hillary teased, “I’m sure [we’ll have] way more fun than Blake’s team.”

So who is Blake’s mentor going to be? Why, none other than the Grammy Award-winning country artist Sheryl Crow! Sheryl and Blake have been good friends for several years, so we’ll excited to see how they interact on the show together.

Now who will assist the newest coaches to join The Voice?

Usher announced that he has chosen superstar producer Pharrell Williams, who Usher told E! News is a “master of his craft, an artist, an innovator.”

As for Shakira, you may have been expecting a fellow sexy Latina singer, but think again! Shakira surprised fans by announcing that she has chosen Joel Madden of Good Charlotte as her battle rounds mentor.

Though the two make completely different styles of music, rocker Joel will certainly bring a unique perspective to Team Shakira. He’s won numerous MTV Awards around the world and has released hit songs like “The Anthem” and “Lifestyles of the Rich and the Famous.”

Which mentor are you most looking forward to seeing on Season 4? Do you think the coaches made good picks? Tell us below!