In fact, the usually mild-mannered Ricky Wilson has it out with will.i.am, when the rapper suggests he should have turned around for a particularly impressive contestant.
Ricky fires back: “Why do you always do that? I never say, 'you should have turned for it'. I'm not judging you on who you are or your style of music.”
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'The Voice' coaches
The Black Eyed Peas star then tells Ricky not to “get bent out of shape”, insisting: “I’m sorry. You can't let that ruffle your feathers. I can't keep my lips shut, I have to say how I feel... I'm not going to sit here and be fake.”
He adds: “I'm sorry. I will never mention your name again.”
The biggest bust-up between the judges is still to come, though, with reports claiming that Boy George had Paloma Faith in tears while taping the auditions last year, when he suggested that she was being “bitchy” and “rude to contestants”.
See Ricky and will.i.am’s awkward showdown in Saturday’s ‘The Voice’, airing at 7.45pm on BBC One.
'The Voice' UK: Where Are They Now?
Jermain Jackman(01 of12)
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It wasn't until the third series of The X Factor that it found its first international star in winner Leona Lewis. With Jermain Jackman's much-anticipated debut album due for release in March, time will tell if he can be The Voice's first ever break-out star... (credit:Dave J Hogan via Getty Images)
Leanne Mitchell(02 of12)
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Sadly, the show's first ever winner found herself dropped last year, after releasing just one album. Leanne has since blamed the fact her label waited too long after her victory on 'The Voice' in releasing the album for its lack of commercial success, claiming she's happy she didn't "cop out" and release a covers album. (credit:Mike Marsland via Getty Images)
Tyler James(03 of12)
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Tyler "I Was Best Friends With Amy Winehouse" James (she's mentioned six times on his Wikipedia page alone) was a fan-favourite during the first series of 'The Voice', famously performing a duet with will.i.am dangling from the ceiling.Sadly this didn't translate to a fruitful music career and his last offering in 2012 stalled at number 47 in the UK album chart. (credit:REX/Brian Rasic)
Bo Bruce(04 of12)
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Despite having the most commercial success of any of the former 'Voice' stars, Bo hasn't exactly had an easy time since leaving the competition, quitting her record label after two singles due to a "lack of support" and eventually checking into rehab for exhaustion.She's since branded former coach Danny O'Donaghue a "wanker" after admitting that they shared a snog while she was still being mentored by him on the show.Bo collaborated with top DJ Chicane on a dance track last year. (credit:Rex/Jason Sheldon)
Vince Kidd(05 of12)
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Had the people who voted on 'The X Factor' also voted on 'The Voice', Vince would probably have won, and could potentially be one of the biggest faces on the music scene, even three years later.Sadly, this was not the case, and Leanne took the crown while Vince came in fourth place (potentially down to the fact he performed one of Jessie J's lesser-known songs as his 'coaches duet').That said, Vince is still making music, and last year co-wrote and provided vocals for the Alpines' track 'Zero'. (credit:Rex)
Twinnie Lee Moore(06 of12)
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Already a successful musical theatre actress when she auditioned for 'The Voice' in 2012, Twinnie Lee has since focused on her acting career, and made a storm in 'Hollyoaks' when she arrived on the scene as Porsche McQueen in November last year.She also, judging from this photo, loves a good hat. (credit:Rex/Tom Horton)
Jamie Johnson(07 of12)
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After performing with legends like Kylie Minogue and Justin Timberlake in the space of a year thanks to his appearance on 'The Voice', Jamie has now said he's determined to make a splash in America, insisting: "I just don’t want half the cake, I want the whole cake." (credit:Rex/Beretta/Sims)
Leah McFall(08 of12)
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One of the most unanimously-praised 'Voice' contestants ever, kooky and talented Leah is due to release her debut album 'Weird To Wonderful' later this year.She's been in the studio with former mentor, will.i.am, collaborating with him on the track, 'Home'. (credit:Neil Lupin via Getty Images)
Andrea Begley(09 of12)
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Andrea famously caused will.i.am to storm off set when she was announced as winner in 2013, over his act, Leah McFall.Since taking her place on the 'Voice' throne, Andrea has hit the UK top ten with an album of covers, 'The Message'.Last year, she also completed her Masters degree in Law and Governance... which would appear to suggest we won't be hearing a follow-up album for the time being. (credit:Harlem Mepham via Getty Images)
Max Milner(10 of12)
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Don't let that haphazard peace sign deceive you - Max is actually on of the former contestants to still be making music, performing alongside Kaiser Chiefs at the launch of Jaguar's new model last year.He also recently unveiled his latest release, 'Man Overboard'. (credit:Rex/Ray Tang)
Sally Barker(11 of12)
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Sally may not have been the winner of 'The Voice' last year, but she still managed to thrash eventual-champion Jermain Jackman in terms of single sales, charting 15 places higher than him the week after the show ended.Following her success on the show, Sally completed a UK tour at the tail-end of 2014. (credit:Alex Huckle via Getty Images)