ALL FOUR MENTORS REVEALED FOR SEASON 4 OF 'THE VOICE US'

*Fans of NBC's The Voice now know everyone who will be helping the superstar coaches when the show returns for its fourth season in March.

It was announced today through Access Hollywood that Lady Antebellum's Hillary Scott will be the mentor for Team Adam. She and Adam Levine previously collaborated on the song "Out of Goodbyes," which appeared on Maroon 5's third studio album, Hands All Over.

Access Hollywood is a production of NBC's parent company, NBCUniversal.

This follows the previous reveals of the other three mentors. Team Blake has enlisted the services of Sheryl Crow, while Team Usher will have Pharrell Williams, and Team Shakira is joined by Good Charlotte's Joel Madden - who is himself a coach on the Australian version of The Voice.

With only one spot left on all the judges' teams the pressure was on during Tuesday night's Voice.

Not only did mentors, Shakira, Usher, Blake Shelton and Adam Levine have to make sure they picked the right singer but they could not hesitate to ensure beat the other judges and turn around for their choice.

And the the rivalry was fierce, especially between new judges Shakira and Usher.

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Big fans: Both Shakira and Usher wanted Luke Edgemon on their teams in the final round of blind auditions on The Voice after his beautiful soulful rendition of Bonne Raitt's I Can't Make You Love Me

Both stars were desperate to get talented Luke Edgemon on their teams in the final round of blind auditions after his beautiful soulful rendition of Bonne Raitt's I Can’t Make You Love Me.

Convinced that the competitor's soulful vibe would make him clearly favour her rival, Shakira pulled out all the stops to win him over.

'I would be thrilled if I could have you on my team because I think your voice is phenomenal,' Shakira told the 24-year-old church minister's son from Fayetteville, North Carolina.



Pick me: 'I would be thrilled if I could have you on my team because I think your voice is phenomenal,' Shakira told the 24-year-old church minister's son from Fayetteville, North Carolina

'You're probably think that Usher is your man - but I'm your girl,' she assured him.

Still convinced that Usher had the upper hand, she then raised her leather-clad leg up and mimicked the R&B star's pose, teasing Luke by saying: 'If I did this would this help your decision? Come on man! Are you ready to pick or what?'

'I pick Shakira,' Luke finally said to everyone's surprise - particularly the sexy Colombian herself. 'It was a little bit of a surprise to me that he made that decision, because Usher is so cool and all that, so I thought, "What if I did the same thing?"

Luke Edgemon wows the judges on The Voice



Dirty tricks: Convinced that Usher had the upper hand, the Latin singer mimicked the R&B star's pose, teasing Luke by saying, 'If I did this would this help your decision?'



Signature pose: Usher often sits looking very cool with one leg up on his chair

But Usher was convinced he was tricked.

'I think the leg sold it for her,' he joked, with Blake adding: 'She had my vote!'

Luke had explained that he had been a backing singer for stars like Queen Latifah and Mary J. Blige but thought it was 'time to step out of the background and into the spotlight'. Judging by the two judges battling for him, it could indeed be his time.

As the final blind auditions, the judges were more cautious than normal because once they made their final pick to fill their teams they would have to pass on all the talent to follow.

It was a juggling act that Blake Shelton may have lost.



Country kin: Blake Shelton was devastated when he was not able to pick teenager Amber Carrington from Nashville, Tennessee, as he already had filled his team



Hard times: Amber revealed she had lost her mother to cancer and that had derailed her singing career



And done! Adam Lavine could not have been happier to land the country singer

Having already filled his team, he was clearly devastated not to be able to pick the next contestant, teenager Amber Carrington from Nashville, Tennessee, who was snapped up by Adam.


'My team is full and that was one of the more frustrating performances I've ever sat through - "Oh my gosh I wish I could push my button for this girl!'" Blake told her.

'You nailed it, you really did, and I hate Adam right now, I really do.'

Adam told her she was 'crazy good', predicting: 'You are going to be one of the biggest surprises of this entire competition. You are incredibly good.'



Ready to belt out a tune: Blake picked Jacqui Sandell a big ballade singing 24-year-old from New Jersey



Painted lady: The former ballerina who turned into a tattooed rocker in a band, joked 'From Tutus to tattoos, that would be my autobiography title'

Blake had already picked Jacqui Sandell, 24, from Oakland, New Jersey, a former ballerina who turned into a tattooed rocker in a band.

'From Tutus to tattoos, that would be my autobiography title,' she joked.

He had pressed his buzzer almost as soon as Jacqui opened her mouth and sang the opening lines of Fleetwood Mac's Dreams, followed soon afterwards by Usher.

'You've got a very sexy sound, and since we've both got tattoos it could make for a deadly combination,' Blake had told her.

Last man standing: Usher was the last to complete his team



Very wanted: Despite not being able to pick her Jessica Childress, 26, left all the judges going wild with her version of Marry You

'I'm so excited to work with him,' Jacqui said after picking Blake - and making him the first coach to have a full team - over Usher. 'Oh my God I want to pee in my pants.'

Usher's disappointment soon vanished when he was the only one left able to vote - and therefore able to pick former public relations manager Jessica Childress, 26, who left all the judges going wild with her version of Marry You.

'All of them would have pushed their buttons but they couldn't,' Usher said of his rivals. 'I could because I wanted to. I am so happy that I have you on my team.

'We're gonna win this thing,' he predicted.



Big risk: The singer left her public relations job, 'I just recently quit my job and the bills are piling up'



And finally! Jessica's gamble paid off as Usher picker her and she became the final contestant to make it on to The Voice

Jessica, from Lancaster, California, said the timing could not be better for her.

'I just recently quit my job and the bills are piling up. I needed this moment - and you gave me this moment, she told Usher as sheer wiped away tears.

There was one huge shock of those not picked - at least for host Carson Daly.

Carson admitted he had long been a huge fan of contestant Mark Lennon's band Venice - and even persuaded Fleetwood Mac's Stevie Nicks to sneak him in to one of her shows so he could hear the band support her.



Really? There was one huge shock of those not picked - at least for host Carson Daly



Carson's rock god: Mark Lennon from the Californian band Venice did not make the grade with the judges despite a long musical career

'She probably thought we were there for her - but we were there for you,' he told the contestant.

'I was a huge, huge fan - I had your autograph framed on my wall in high school.'

But he was left incredulous as none of the judges pushed their buzzers for the 49-year-old rocker after his version of The Beatles' Come Together.

'You are KIDDING me,' Carson sighed.

Adam explained his own decision. 'It needed to be a little dirtier for me.'




And now the games begin: Next week the singers will do battle putting the judges turned coaches against each other