One Direction - What Makes You Beautiful (official Video) -

The impact of this track was immediate and massive. It debuted at number one on the UK Singles Chart and eventually peaked at number four on the US Billboard Hot 100.

The track was written by Savan Kotecha, inspired by his wife’s morning insecurities. He turned her doubt into the famous hook: "You don't know you're beautiful" . Why It Still Matters One Direction - What Makes You Beautiful (Official Video)

The official music video, directed by John Urbano , is the epitome of "feel-good" energy. Filmed over two days in July 2011 at Sycamore Cove Beach in Malibu, California, it captures Harry, Liam, Louis, Niall, and Zayn in their most candid, youthful state. The impact of this track was immediate and massive

Who could forget Louis’ classic striped tee and red pants? It became a staple look for early "Directioners". A Record-Breaking Debut He turned her doubt into the famous hook: