Happy 10-year anniversary, One Direction! One Direction is one of the defining pop groups of the first half of the 2010s -- partially because the U.K.
boy band was also one of the most prolific pop artists of that time period, releasing five full-length albums in five years.
Over the course of their time together, 1D exploded in popularity and reached stadium status, bringing a slew of colorful hit singles to the masses and conjuring unholy screams from thousands of teenage girls.
Zayn, Harry, Liam, Niall and Louis released singles as diverse as “Little Things,” “Midnight Memories” and “One Thing,” eventually becoming a mainstay on the U.S.
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