The Black Eyed Peas star appeared to be aiming his criticism at series such as The X Factor, which have featured judges who aren't performers, such as Simon Cowell and Louis Walsh.
Watch will.i.am talking to Digital Spy below:
"I've worked on the other ones, the American Voice and The X [Factor]," said the 'Where is the Love?' singer. "This one is different than the other cats. It's really what the music industry is really about.
"Nowadays talent finds talent. Executives in the studio judging music... musicians have always been like, 'Why is this suit in the studio?' Since the dawn of time, musicians and artists didn't rub right with executives."
He added: "To have artists, performers and songwriters up as their coaching artists, I feel more comfortable doing that."
will.i.am, Tom Jones, Jessie J and The Script's Danny O'Donoghue are the four coaches on the BBC's latest spin on the musical talent show format.
The Voice UK launches on Saturday, March 24 on BBC One.
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