Five years later, the band revisited the song that ~started it all~.
Any dedicated One Direction fan will remember back in their X Factor days, when the band performed an a cappella cover of Natalie Imbruglia's "Torn" at judges' houses.
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Their hair was so overwhelming. They wore matching shades of neutral. Zayn was there. It was a different time.
Ken McKay / TalkbackThames / REX Shutterstock