The boybander has gone and got himself a tattoo of a cup of tea, inspired by his 'You can't go to bed without a cup of tea' line in the band's hit 'Little Things'.
Louis debuted his brew inking on Instagram, along with the caption 'You can't go to bed' on Tuesday.
He's been catching up with Harry and Zayn in the tattoo department after he initially resisted joining the One Direction tat club, and recently unveiled a huge bird design on his forearm.
Louis hinted he would be going under the needle again last week when he tweeted: "More tattoos soon!"
One Direction are currently touring the country on the first leg of their eight month 'Take Me Home' world tour.