Happy 4th Birthday to Justin Bieber's sister, Jazzy!

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Hey M Girls!

Today is a big day for a very special lady in Justin Bieber's life -- and no, we're not talking about Selena ;). Jazzy Bieber turns four today, May 30! Even though JB's traveling around Europe, he made sure to leave a special tweet for his sister. He wrote: HAPPY BIRTHDAY JAZZY!!! Your big brother loves you and misses you. EVERYONE SHOW LOVE TO MY SIS!

Aww, Justin is SUCH an amazing older brother! Happy Birthday, Jazzy! Leave your own messages for her in the comments below!

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