Simon Cowell has accused The Voice UK of being the "same show" as The X Factor.
The Syco boss and ITV talent show judge mocked the concept of the Blind Auditions, where the coaches do not see the acts, by suggesting that the programme should air on radio.
Speaking on Radio 4's Today programme, Cowell exclaimed: "That show puzzles me because it starts off by saying, 'It's all about the voice'. So my first thought is, 'Why isn't this on radio?' Because what's the point of looking at them?
"Once they've gone through the [Blind Auditions], then suddenly I'm watching it two weeks ago and it's the same as X Factor. They've got dancers behind them, graphics, lights. Same show."
Referring to his other show Britain's Got Talent's much-publicised ratings battle with the BBC singing contest, Cowell added: "They like to have a pop at us as well.
"When The Voice came along, it was kind of like - roll your sleeves up, we're in for a bit of a punch up here. I'm smiling now because we're winning.
"I wasn't so happy three weeks ago but not to the point of any silliness. They were beating us and we needed to make our shows better, and that's all we did."
