Simon Cowell appeared in the episode of Celebrity: X Factor on Saturday trying to make up for Little Mix.
The 60-year-old music mogul called the girls group "pros" during the live show when he made comparisons between them and the current X-Factor candidate V5.
This happened after he revealed that he was looking forward to a "battle" as he and Little Mix would start rival shows in search of the next big pop group.
Olive branch? Simon Cowell appeared in the episode of Celebrity: X Factor on Saturday trying to make up for Little Mix
While commenting on V5's performance, Simon said, "I had the privilege of working with Fifth Harmony and Little Mix.
"And now we're working with you, and what you all share is that absolute determination and professionalism, and everything comes from you."
He added, "I think the UK, which you did not know before, put you through, is such a stunning positive signal."
Real pros: The 60-year-old music mogul called the girls group "pros" during the live show when he made comparisons between them and the current X-Factor candidate V5
Simon recently said he had the idea for X Factor: The Band (this is a working title in which he'll put together a boy band) before Little Mix got him a co-producer role on their BBC prime-time show The Search offered.
But he says he has to refuse because of a conflict of interest, and when they hear about his show, they bring their own.
He said to The Sun: "That really happened. I was approached by the management of Little Mix to produce this show as a co-producer last year.
"I'm looking forward to this fight": Simon recently said he had the idea for X Factor: The Band (this is a working title – in which he will put together a boy band) before Little Mix gave him a role as a co-offer producer their BBC prime time show The Search
& # 39; I told them the problem was that we had a conflict of interest because we launch X Factor The Band in 2020. We were told that their show would start in 2021.
& # 39; Then we had the fallout and found out that Little Mix was advancing their show. Was that intended because we are doing our show? I have no idea. & # 39;
Little Mix was founded in 2011 when Simon chose Jesels Nelson, Jade Thirlwall, Perrie Edwards and Leigh-Anne Pinnock as members of a new Girls Band.
They were represented by Simon's record label Syco and released four albums, until there was a dispute with the group's managers, Modest! last year.
Bold step: Little Mix recently confirmed reports that they will launch a television program on Saturday night that will compete with Simon's X Factor
Simon reportedly canceled the X Factor All Stars next month, where former winners like Leona Lewis and Alexandra Burke were expected.
Instead, he performs his group show to compete with Little Mix, saying, "It makes it 100 percent more exciting to have a fight."
A source told MailOnline: "Simon has pressed the pause button on All Stars and will introduce The X Factor – The Band. It was not eliminated as such, but Simon made the decision to postpone things. "
Exciting Times: At the BBC One Show, Little Mix The Search, talented singers become members of exclusively female, exclusively male or mixed bands and compete against each other
Louis Walsh and Paula Abdul, who were to direct All Stars, were reportedly retired before the launch of X Factor The Band.
ITV's latest project auditions will soon begin at Sony Music in London. The live final will be held in December at the Birmingham Arena.
The rival Little Mix The Search will see talented singers become members of exclusively female, exclusively male or mixed bands and then compete against each other.
Fierce rival: The winning group will then perform on their summer tour with the mega-selling girl band in 2020 and lift the show off from Simon, who offers no similar benefits
The winning group will then work together on their summer tour with the mega-selling Girl band in 2020 and stand out from Simon's show, which offers no similar benefit.
The members of Little Mix become mentors for competitors.
And singers who make it into new bands will live together and gain access to the inner circle of the group, including voice coaches, authors, producers and stylists.
The group told Nick Grimshaw of BBC Radio 1 last month that they are looking for the next big band.
They said competitors can participate as a duo, a tri-partite or a quadrilateral, while attendees can add and remove groups during the show.
Perrie said, "People can also be taken out. It's pretty brutal. & # 39;
Treasure trove: Singers who make it into new bands will live together and gain access to the inner circle of the group, including voice coaches, writers, producers and stylists
Grimshaw talked about the tantalizing prize for participating in the Girl band on the 2020 tour and said, "This is a mega prize because you're really good in a group, like the best."
Jade then outlined how she and her bandmates would serve competitors.
"We want to start incredible groups that get along really well because we were there and did that and still do it.
"I feel we really know what matters and we will help them on the way there.
Jesy added, "It's also exciting because there will be so many different types of groups. We want boys groups, girl groups, mixed groups. & # 39;
Applications for the show have already been opened and potential participants can upload audio samples to the BBC website.
Little Mix said in a statement, "We want to start many incredible groups that really succeed.
"Since we were there and doing it ourselves, we know what it takes to make a group successful and will be there to look after them every step of the way.
& # 39; We want solo artists to audition like groups, and any genre is welcome too. It is getting very exciting and people can apply immediately! & # 39;
Track record: Little Mix's members, Perrie Edwards, Jesy Nelson, Jade Thirlwall and Leigh-Anne Pinnock, become mentors for competitors
Charlotte Moore, director of BBC Content, said: & # 39; One of Britain's most popular women's bands, Little Mix, will bring its magic to BBC One on Saturday nights in a brand new show in 2020 to inspire the next generation of young artists. & # 39;
Andrea Hamilton, executive producer of ModestTV, said: "It's a real privilege to build a new show around such a successful and popular British band.
"Establishing bands means relationships are important, and there's no one who shares this experience better than Little Mix who's living them right now."
It comes after last week's reports about the new show have surfaced.
The Girl band, which came to fame after winning the eighth series of the X-Factor, Simon should have put a heavy blow on the scheduled start.
An insider said to The Sun: "This show is huge for Little Mix, but it will be a big blow for Simon.
& # 39; X Factor viewership has been dropping for years, but that could be the nail in the coffin.
"Saturday night needs a new vocal competition to freshen it up and with Little Mix it could be that."
Here you can apply for X Factor The Band.
Girl Power! Simon claims he rejected the role of co-producer because the BBC One show clashed with his own plans to start a new pop group