27 Iconic Moments in One Direction History

What happened: We were blessed with 1D Day.

Why this is important: 1D Day was the biggest, best sh*t show ever to have existed. The band live streamed for over seven hours, and fans were treated to technical difficulties, awkward segues, guest stars like Jerry Springer, and video montages with a lot of shirtlessness. It was also how Jason Derulo's "Talk Dirty to Me" became so popular so quickly.