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One Direction has a new single on the way.  On Tuesday, the British boy band announced that its next single will be called "Best Song Ever," and will become available for pre-order on iTunes starting Wednesday. 

They also released the first full-length trailer for their upcoming concert documentary "This Is Us."  In it, they're giving fans a taste of "Best Song Ever" to hold them over until its official release. The single is expected to be the first off the group's third album, which is expected out sometime this year. 

Harry, Louis, Liam, Zayn and Niall are currently on tour in the U.S., making stops in Boston and Wantagh, New York this week.

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