One Direction Twerk, Dance + Announce App in 'Who We Are' Videos

Directioners, One Direction's official autobiography, 'Who We Are,' is finally here! If you can bear to tear your eyes away from binge-reading, we have even more exciting news to share about the book.

The band recently released a behind-the-scenes look at the 'Who We Are' photo shoots, and as you can expect, the guys got a little rowdy. We're talking Niall twerking and Liam literally picking up Niall upside-down. Oh, 1D.

"I think a lot of photographers do get a bit frustrated with us sometimes, because it is hard to get us to concentrate and look at the camera," Liam joked in the BTS vid (which you can check out above). Ya think?

The guys also announced a companion book app to give you even more One Direction content. All you have to do is DL the app to your phone or tablet and scan it over the book to unlock exclusive, never-before-seen 1D photos, videos and quizzes. Um, yes please. Watch the guys reveal the app in the video below.

And just in case that's not enough 'Who We Are' excitement for you, we'll leave you with this parting audio clip of Louis discussing the sudden onset of fame after 'X Factor.'

Enjoy, Directioners!

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