Today is Miley Cyrus' 21st birthday! To celebrate, we've rounded up 21 photos of Miley's best friends ever. From her Hannah Montanadays to her new album Bangerz, Miley has been working in the entertainment industry her entire life. Throughout her journey, she's made tons of friends, and unfortunately she's lost a few too.
Click through to see Miley's closest friends over the years, then let us know in the comments below who you're the most surprised to see.
Don't forget to leave your birthday wishes, too!
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