While it was Styles’ a capella rendition of Stevie Wonder’s ‘Isn’t She Lovely’ that was aired on television in 2010, Styles first performed a Train song, ‘Hey Soul Sister’, for the judges.

In the clip, which you can watch below, Simon Cowell can be seen stopping Styles’ performance mid-song and asking him to sing without a backing track.

“I don’t know whether it’s the track that’s throwing you, but can I hear something just you, without any music?” Cowell said.

Styles then performed ‘Isn’t She Lovely’ before being put through to the next round of the competition – check out the moment here:

The previously unseen footage also includes some talk about Styles’ former weekend bakery job and how his “mum’s always” told him he was a good singer.

“I think I could do it, but I think with your help I could be a lot better than I am,” Styles said.