The Irish music mogul had originally sent home girl group Four of Diamonds at Judges' Houses, but the girls have now made a return to The X Factor to replace duo Brooks Way.
Brooks Way mutually decided to leave the competition, after allegations surfaced surrounding Josh's personal life.
Following their exit, Brooks Way sent their well wishes to their replacement and told Four of Diamonds that they "deserve" to get a second shot on The X Factor. Their mentor Louis Walsh seems to agree and has gushed about the girls in a recent interview: "They're amazing."
Speaking to The Sun, Louis said: "I don't particularly like working with girlbands because it's very hard to get a girlband that actually all get on. These four seem like they are really good friends... I'm really glad I have them now."
He then reflected on his decision to give them the boot in Ibiza and added: "Maybe I should have put them through!"
Louis' decision not to include Four of Diamonds in his final three for the live shows had caused some controversy on social media, with even his guest judge Alesha Dixon expressing her disappointment.
She had tweeted following Louis Judges' Houses round: "Well that was fun! But I am gutted, I was really rooting for the 2 girl groups!"
Many fans had said the same and on choosing Four of Diamonds to replace Brooks Way, Louis claimed he had the interest of X Factor fans at heart.
He said: "I was really impressed with the girls at Judges' Houses but only had three spots to fill for the Live Shows. At the time a lot of viewers were disappointed that I didn't put the girls through, now that a place has opened up in my category, I've listened to the fans and am delighted to be bringing the girls back."
Since then, Four of Diamonds have been spotted at rehearsals and are now all moved into the X Factor house, alongside the other hopefuls.
It has since been revealed that Four of Diamonds had actually all auditioned for The X Factor as solo singers. They were, however, then sent to a group boot camp where they were put together in a band, before being sent to audition in front of the judges.
A rep for the show confirmed: "Four of Diamonds did all apply for the show as soloists but didn't make it past the first stage. They were then invited to take part in a workshop to form a group, the group then had to apply again to enter the show."
The addition of the girls brings Louis' total of groups back up to two. As well as Brooks Way quitting the show, Bratavio were the first act to be sent home. Following the first live show, Bratavio found themselves in the bottom two and were eliminated by the judges, as Simon Cowell, Sharon Osbourne and Nicole Scherzinger opted to save Saara Alto.
Since leaving, the duo made up of Bradley Hunt and Ottavio Columbro, have said they are hoping to forge a presenting career and would love to appear on Big Brother.
The X Factor continues Saturday 15 October on ITV.
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