Simon Cowell voices his support for rival The Voice
X Factor supremo Simon Cowell has tipped rival show The Voice to last despite its lack of hits.
The Voice has still not produced an act to rival the success of The X Factor, which launched the careers of One Direction, Leona Lewis and Olly Murs.
First ever Voice winner Leanne Mitchell flopped when her debut single failed to reach the top 40 and her album missed out on the top 100.
Cowell, soon to be back on TV in the new series of Britain's Got Talent, said: "My gut feeling is there are now four talent shows that will probably last for quite a long time and that's The X Factor, Britain's Got Talent, Strictly and The Voice. I think that's enough. Any more than that will be a problem."
Cowell said he had taken a new "nosy" approach to BGT contestants bidding to find fame on the ITV show.
He said: "Sometimes when you ask these questions you really get to know whether the person is sincere and whether they are serious about this - and so it helps me make a decision. Actually, if you like the person before they have performed then they stand a better chance."
He singled out guitarists as the acts to avoid, saying: "All they have ever done is play the guitar in their bedroom so when you put them on stage they just can't perform."