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LONDON, ENGLAND - MARCH 04: Harry Styles, Zayn Malik, Louis Tomlinson, Niall Horan and Liam Payne of One Direction attend Heart Radio's annual Have A Heart Appeal fundraising day, this year its in aid of Children's Hospices UK at Global Radio Studios on March 4, 2011 in London, England. (Photo by Danny Martindale/WireImage)

LONDON, ENGLAND - MARCH 04:  Harry Styles, Zayn Malik, Louis Tomlinson, Niall Horan and Liam Payne of One Direction attend Heart Radio's annual Have A Heart Appeal fundraising day, this year its in aid of Children's Hospices UK at Global Radio Studios on March 4, 2011 in London, England.  (Photo by Danny Martindale/WireImage)

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BURBANK, CA - NOVEMBER 22: (L-R) Musicians Niall Horan, Zayn Malik, Louis Tomlinson, Liam Payne, and Harry Styles of the band One Direction during the "One Direction iHeartRadio Album Release Party" hosted by Ryan Seacrest at the iHeartRadio Theater Los Angeles – Clear Channel's new music and events venue located at The Burbank Studios in Burbank, CA (Photo by Christopher Polk/Getty Images for Clear Channel)

BURBANK, CA - NOVEMBER 22:  (L-R) Musicians Niall Horan, Zayn Malik, Louis Tomlinson, Liam Payne, and Harry Styles of the band One Direction during the "One Direction iHeartRadio Album Release Party" hosted by Ryan Seacrest at the iHeartRadio Theater Los Angeles – Clear Channel's new music and events venue located at The Burbank Studios in Burbank, CA  (Photo by Christopher Polk/Getty Images for Clear Channel)

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NEW YORK, NY - AUGUST 04: Harry Styles, Liam Payne, Louis Tomlinson and Niall Horan of One Direction pose onstage during ABC's "Good Morning America" at Rumsey Playfield, Central Park on August 4, 2015 in New York City. (Photo by Kevin Mazur/WireImage)

NEW YORK, NY - AUGUST 04:  Harry Styles, Liam Payne, Louis Tomlinson and Niall Horan of One Direction pose onstage during ABC's "Good Morning America" at Rumsey Playfield, Central Park on August 4, 2015 in New York City.  (Photo by Kevin Mazur/WireImage)