One Direction songs: Which were the most successful over the years?

Boyband One Direction released many hits in their time together, here are Liam Payne, Harry Styles, Louis Tomlinson, Niall Horan and Zayn Malik's Top 10 songs as 1D.

One Direction's US success boosts Sony

Louis Tomlinson: 'Niall is lovely, Zayn has the voice, Harry is cool, Liam gets the crowd going… then there's me', One Direction

Ronan Keating compares Boyzone to One Direction as he reveals regrets

One Direction: Who Wrote The Most Songs In The Band?

The ups and downs of the One Direction boys, eight years after the departure of Zayn Malik, Culture

Louis Tomlinson Says Harry Styles' Success Used to Bother Him

Niall Horan on top of the world again as One Direction named second most successful music act in the world - Irish Mirror Online

Interview: Harry Styles On 'Fine Line,' Stevie Nicks, Life After One Direction : NPR

A Breakdown of One Direction: Which Member Really Did The Most?, by Miranda Myers

One Direction 10th anniversary: The group's 10 best songs, ranked

Billionaire Boyband One Direction to Earn $1bn in 12 Months

Every One Direction Song EVER: Ranked - Capital