Gavin, 52, starred on The Voice for just one series and has since been replaced by Olly Murs, 33, for the new season.
However, it seems that will.i.am is pleased with the new line-up and has even called it the “best yet”.
Speaking to Express.co.uk, the Black Eyed Peas star explained that he thought Gavin was “polite” just moments after blasting his former contestants for owning the same trait.
He explained that his team’s unwillingness to call or email him – despite giving them his contact details and urging them to get in touch – is the reason the show hasn’t produced a global star.
Discussing the rest of the show’s previous coaches, will.i.am, 42, gave his honest opinion, starting: “I love Danny [O’Donaghue] and The Script is awesome.
“Ricky [Wilson] – I loved the showman that Ricky was and I miss him. Gavin was polite.”
The Let’s Get It Started hitmaker added that he enjoyed the mix of the girls the show has seen over the years.
However, it seems that Will is pretty set on this year’s panel, which is completed by Jennifer Hudson and Tom Jones.
He said: “You have Jennifer… Hey, this is what it looks like to lose – ‘I won a BAFTA, an Emmy, Grammys, I sung on freaking plays and s**t, an Oscar’ – that’s what a loser looks like.
“[She’s] the biggest star with an awesome career and we were missing that for boys – and now Olly is like, ‘I used to be a contestant too!’”
The Voice UK returns to ITV this Saturday at 8pm.