Louis Tomlinson says Simon Cowell has annoyed him on 'The X Factor'.

Robbie Williams, Ayda Field, Louis Tomlinson and Simon Cowell

Robbie Williams, Ayda Field, Louis Tomlinson and Simon Cowell

The former One Direction star - who was part of the superstar boy band put together by the media mogul - has admitted the talent show boss has got on his nerves during their time together on the judging panel.

He told The Sun newspaper's TV Bizarre column: "I knew that Simon was annoying. He's been annoying me a bit on the panel, but we've had a bit of a laugh, so that's been good."

Viewers won't be too surprised by Louis' comments, after he's been seen clashing with Simon a number of times over the current series.

Earlier this month, he fired back after the 59-year-old star - who he joins on the panel alongside Robbie Williams and Ayda Field - tried to take credit for one of Brendan Murray's song choices.

He ranted: "I chose it actually Simon. You certainly didn't choose it."

When his boss tried to suggest he'd sparked the idea with a phone call, Louis, 26, argued: "No Simon. No, you certainly didn't."

And even earlier in the series, the pair also clashed after Simon branded one of Brendan's performance as "really boring", prompting Louis to tell him to "shut up" as he insisted it wasn't memorable.

However, the contestant's mentor responded: "Well, Brendan obviously I completely disagree. I put the pressure on you this week I wanted you to pick the song.

"Pipe down Simon, just for a sec. I thought you really really delivered and Simon doesn't know what he's talking about."

The two judges will be going head to head in this weekend's 'X Factor' final, with Louis' acts Dalton Harris and Anthony Russell facing off with Simon's protege Scarlett Lee.