One Direction, arguably the hottest boy bands in the world, is celebrating its anniversary today, July 23.
They are celebrating four years together as a band today, according to HollywoodLife.com. If you are a One Direction fan, you probably have all three albums and anticipate many more.
Has it really been three years, asks fans and band members? Fans have been taking this day to tweet back at Harry, Zayn, Louis, Niall and Liam, using the hastag #thankyou1D.
In 2010 Simon Cowell, the man that loves to hate, formed the boy band that has gained the hearts of many around the world.
So far the band has released four albums: Up All Night, Take Me Home and Midnight Memories.
To celebrate the fourth anniversary of One Direction, here is a Top Ten list of the most popular 1D songs since they began in 2010.

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10. What Makes You Beautiful
1D made girls everywhere feel gorgeous with this song and practically made hearts melt when it was released in 2011. The song premiered on the band’s album Up All Night. The song has made it to Xbox 360’s “Just Dance 4” and, let’s be honest, everyone dances a little when they hear the tune.

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9. Best Song Ever
This tune was first heard on the album Midnight Memories in 2013. The United Kingdom based band brought everyone a surprise when they released the song and, of course, everyone loved it!

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8. Story of My Life
Every girl in the world had a heartbreak when they heard this song for the first time. The band sang “The Story of My Life” when they were the musical guests on SNL.

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7. You & I
You & I, a song that was produced to endorse the band’s new fragrance (You & I), has been a hit since it was released in 2013. 1D hopes that its fragrance does as well (if not better) than the song.

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6. Kiss You
This song was another heartbreaker from Take Me Home. Hearing the 1D band members saying “Kiss You” was enough to make people love this tune.

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5. Midnight Memories
Midnight Memories, named after the album it comes from, was one of the most famous songs by 1D. The album did extremely well and the song trended for 526 weeks around the world. 1D was successful in producing this song and, well, the entire album.

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4. Little Things
This song from the album Take Me Home has been famous around the world for quite a while. It trended around the world for 191 weeks.

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3. Happily
Happily is not as famous as some of the other songs on Midnight Memories, but all of the 1D fans love it! It has not made it “big” around the globe yet, but premiered for one week in the Top 50 in Sweden, according to Music Charts.

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2. Diana
Diana was another successful song from Midnight Memories. The song was seen on 14 different charts around the world for 19 consecutive weeks.

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1. Strong
This song was number seven on the album Midnight Memories and was one number one charts for 17 weeks in 15 different charts around the world.