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30 August 2013, 14:35
The "Kiss You' star says he just wears his pants sometimes while in the recording studio.
One Direction star Niall Horan has admitted he often records songs while dressed in only his underwear.
The 'Little Things' singer says he first stripped off in the recording studio while working on the band's first single 'What Makes You Beautiful', and enjoys how much cooler it is.
"I've been doing it for a while," Niall revealed to Heat this month. "I recorded 'What Makes You Beautiful' in my boxers!
"'What Makes You Beautiful' was the first time I did it because it was really warm in the studio, and I've done it ever since," he explained. "I sing better naked."
Check out a picture of One Direction star Niall Horan celebrating the 1D movie premiere below (Credit: Getty):
The band recently gave their 3D concert movie This Is Us its world premiere in London, before heading out to America for the MTV Video Music Awards 2013 last weekend.
One Direction have also been spotted shooting a brand new music video this week back in the UK.