One Direction's Louis Tomlinson joined Simon Cowell in France for X Factor Judges' Houses this year and fans were LOVING IT.

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Tomlinson was helping Cowell decide which of the Overs would make it through to live shows.

Incase there was any confusion, Sinitta (Cowell's usual aide) confirmed it wasn't her.

https://twitter.com/sinittaofficial/status/658011333342986241
https://twitter.com/paruhdiseljp/status/658015361053433857
https://twitter.com/Sarahcope3/status/658015353579155456

His 'well done darling' go-to phrase soon caught on

"Smash It Lad™" "Well Done Darling™" Louis Tomlinson, 2015

— sophie ✍ (@laurelbelly) October 24, 2015

https://twitter.com/kt_1dx/status/658015363423186944
https://twitter.com/stardustlirry/status/658014751625228288

One user was very quick on the pause button with this cheeky snap

https://twitter.com/highlara/status/658014745476341760

Well, Bupsi did rock it

https://twitter.com/ilysmJake_Sims/status/658014741877641216

Her catchphrase is also catching on

https://twitter.com/nomshellett/status/658014736517365760

The general consensus seemed to be

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https://twitter.com/michellepryde/status/658014732063002624

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