One Direction hunk Niall Horan has confessed he likes recording the boy band's hits in his underwear.

The 19-year-old singer admits he has started stripping off for luck because he believes his near-naked antics in the studio give the group a little extra luck.

He explains, "I've been doing it for a while. 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. I sing better naked."