The singer is seen confusing Welsh legend Sir Tom Jones with a Scott, and suggesting that he wears a 'quilt'.
In a segment called Educating Rita, the newbie coach says: "I've got so many questions to ask Sir Tom Jones and I don't know where to start.
"I kind of just sit there and listen to him 'cause every that comes out of his mouth you can learn from."
Rita then asks Sir Tom:" "Are your quilts tartan? You know when you where quilts."
A puzzled Sir Tom asks: "Kilts you mean? No, we don't wear kilts in Wales, that's Scottish."
As a shocked Ricky Wilson and Sir Tom Jones looked on surprised, Sir Tom goes on to try and teach Rita some Welsh.
Later, the Hot Right Now signer is surprised to discover that there was no internet in Wales... in 1956.
Sir Tom told young Rita how in fact the only phone in his hometown at that time was at the end of the street.
Elsewhere on The Voice UK tonight and Will's tactics come up for discussion as he starts the fifth episode with just four acts.
He says: "I'm just looking for someone to come knock down the walls."
Watch the coaches antics - and of course some amazing blind auditions - when The Voice UK airs tonight from 7:15PM on BBC One.
Browse pictures of tonight's auditions below...