By The public made the call for the first time in the show's history, and they voted on Twitter for Simon Cowell to lead the Overs.
The X Factor backstage secrets revealed: The naked truth behind the auditions
Cheryl Fernandez-Versini has got the Groups, and newbies Nick Grimshaw and Rita Ora have the Boys and Girls respectively.
Cowell actually won last series guiding the Overs, with Ben Haenow sealing the crown ahead of fellow Overs contestant Fleur East.
"Wasn't the category I was expecting," he tweeted. "I did win last year with the Overs so I'm sure we will do great things this year."
The #XFactor 2015 Judges' categories:
@SimonCowell Overs
@CherylOfficial Groups
@grimmers Boys
@RitaOra Girls pic.twitter.com/r6TCOHlTSB
What to Read Next
ā The X Factor (@TheXFactor) September 1, 2015
The six-chair challenge is currently filming across today and tomorrow.
The X Factor continues on ITV this Saturday (September 5) at 8.15pm.
Watch Cheryl and the other X Factor judges gossip about category choices, Miley Cyrus and the dreaded six-chair challenge below:
