Selena Gomez's super-romantic birthday tweet to Justin Bieber!

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Hey M Girls!

There's no doubt that Jelena is one of the most adorable couples in the world, but they may have just gotten even cuter. Today, on Justin's birthday, Selena let everyone know just how much he means to her. She tweeted the above picture and wrote: Happy birthday to my best friend in the whole world!!! Have a great birthday baby! Aww, that makes us grin from ear to ear -- we love that Selena considers him not only her BF, but her BFF, too!

Having an amazing GF like Sel is one of the greatest gifts a birthday boy could wish for! Hope you're having a great day so far, Justin!

If you're looking for something special you can do for Justin today, look no further! JB is trying to break a Guiness World Record for the most social media messages in 24 hours, and your message can help him out. Just check out www.happybirthdayjustinbieber.com to get involved!

Let's dish: -Did Selena's b-day tweet to Justin bring a big smile to your face? What would you say to Justin today if you could?

Photo courtesy of Selena Gomez's Instagram

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