Some members of the press have criticised the group for 'dirty lyrics' in songs such as 'Live While We're Young'.
Lyrics from the group's single include: "It's now or never, don't overthink, just let it go, and if we get together, get together, don't let the pictures leave your phone."
However, member Louis Tomlinson has insisted that the lyrics are only dirty if you "want to read them with a dirty mind".
BBC Newsbeat reports that he said: "The thing is with the way the lyrics read, they read how you want them to read. If you want to read them with a dirty mind, fair enough.
"But if not, it can mean a completely different thing."
Harry Styles added: "I think you read into it what you will. We are 18-, 19- and 20-year-old boys. The fans seem to like it, so it's all good."
The group will release this year's Comic Relief single, a cover of Blondie's 1978 hit 'One Way or Another'. They will perform the track for the first time at this year's BRIT Awards on February 20.
Watch the video for 'Live While We're Young' below: