1D star Louis is one of three new X Factor 2018 judges this year alongside husband and wife Robbie Williams and Ayda Williams.
They join Simon Cowell on the panel, with the show due to launch on ITV later this year.
Louis and Niall both rose to fame on the show, auditioning first as soloists in 2010.
They were then put in a new boy band called One Direction who of course went on to take the world by storm.
Now a judge on show himself, Louis is set to be joined by Niall during filming.
The Slow Hands hitmaker was asked during an Instagram Q&A: "Would you like to join/visit Louis in the Xfactor?"
Niall replied: "Of course. Can't wait to go down and see him in action."
So we'll definitely be seeing Niall at the studios, but could he also be Louis' helper at judges' houses?
As yet, Louis has not yet confirmed who will join him at the next stage of filming or where he'll be heading with his acts.
For now, The X Factor 2018 will start on ITV later this year.
On joining the show, Louis said last month: “The X Factor for me made a lot of sense. Development of artists is something I’ve been interested in for a long time.
"Having been on the show myself I know first-hand that the live shows are like nothing else you would experience. I’m looking forward to guiding auditonees through the process.”