One Direction has finally revealed the trailer for their upcoming film, "This Is Us." Apart from the debut of the highly-anticipated trailer for their movie, the British boys also announced their next single. "Directioners" better ready those ears for the "Best Song Ever."

Harry Styles, Niall Horan, Liam Payne, Louis Tomlinson and Zayn Malik are gearing up for their next single. According to the boys' post, their next song will be the "Best Song Ever." The latest single was slated for release on iTunes last Monday, July 22. So far, the said song hasn't been released.

"Hi guys, it's us again. We've got a little secret we've been keeping and we want you to know about it," said Niall.

"We are releasing a new single. It's called 'Best Song Ever', it's going to be in our movie and you can pre-order it from midnight, 12pm tonight [June 26]," stated Harry.

"We've worked really hard on it and we hope you enjoy it; and it's called 'Best Song Ever,'" added Zayn.

For those who want a snippet of the track, the song can be heard at the 2:30 mark in the trailer for "This Is Us." Check it out below.

It'll only be a while wait for fans of One Direction to get their ears prepped up for the song. As for the CD, "Directioners" will be getting their hands on it by August 19.

In other One Direction related news, the boys are set to open for the 2013 Teen Choice Awards with the performance of the "Best Song Ever." The show is slated to air on FOX by August 11, 2013. "Directioners" had better mark those calendars and tune in to the show because this marks an important piece in the boy band's history.

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