Louis Walsh thinks girl bands are 'high maintenance' compared to their male counterparts.
‘The X Factor’ mentor – who has mentored the show’s Groups category for four series out of six, and manages Girls Aloud – said he much prefers working with boy bands.
He also blasted the two all-female groups he looked after in the present finals of ‘The X Factor’, Kandy Rain and Miss Frank.
He said: "Kandy Rain, Well, we've forgotten them already and Miss Frank never really gelled; three different personalities. That's girl groups for you.
"They're high maintenance. It's easier to manage boy bands. Less hairspray, less make-up, less baggage."
He also stands by his choice to place tuneless twins John and Edward into the show’s final, saying he firmly believes ambition is more important than talent in the pop business, and former winners like Leon Jackson and Steve Brookstein were given a fair shot at fame.
He added: "Very few people have star quality. We've had Leona Lewis, Alexandra Burke and JLS.
"Everybody gets one chance. This show is a platform for people who have got talent and if they use it properly, it's just a chance. They're not all going to be stars.
"Madonna and Robbie Williams are two great examples of people who have got great drive and wanted to do it but if you bring them in here and get them to sing a cappella, it's not going to be great."