Late Late Show bosses have to deal with a double set of management and record companies in advance of Take That's Friday night appearance.
Ryan Tubridy has managed to secure one of the hottest acts of the moment -- but his production team are working extremely hard to keep both Take That and Robbie Williams' management happy.
Williams, who recently rejoined the band, will perform a solo set on the show as well as joining Gary, Howard, Jason and Mark for a group number.
The fivesome will be grilled by Tubridy next Friday night.
An insider revealed: "It's a massive coup for the show, getting one of the first gigs back with Robbie Williams. But he still uses his own manager and representative from his record label, which is very strange considering he has just rejoined the band.
"It's pretty much unheard of to have two separate record com-panies working on behalf of the same band.
"So right now there are an awful lot of suits backstage. They will still be performing, but this has just taken a few people by surprise."
And security will be super tight ahead of their highly anticipated grilling, after throngs of fans threw themselves at the band during their last appearance in 2007.
"Hordes of women ran to the stage during the ad break last time, so they are making sure that doesn't happen again," the source added.