Take That - who are now a trio - performed their latest single ‘These Days’ on the show and their rendition of the track came complete with dance routines and matching suits.
However, Si wasn’t exactly bowled over by the band and during a chat with The Sun, he shared an interesting idea for how they could improve things and become a four-piece again.
“Stevi in for... what’s his name? I can’t even remember his name. Oh, Jason.”
In September, it was announced that Jason Orange had quit Take That, leaving Gary, Howard Donald and Mark Owen as a trio.
They’ve already revealed the video for ‘These Days’, which features the band in bed together, and the band’s new album is due out on 1 December.
Watch Take That's ‘X Factor’ performance above…