Miley Cyrus: A Retrospective

It's easy to forget Miley Cyrus is just 22 years old. That's probably because she's been in the public eye for quite some time. It's like we grew up with her — even though sometimes we lose track of the exact time she went from Disney sweetie-pie to grown-up shot-caller.

Today, the singer's Bangerz Tour DVD went on sale. And, it's been a not-so-gentle reminder that Cyrus has gone through quite the evolution. Remember Hannah Montana? Remember The Last Song? The lead-up to her Bangerz days seems like forever ago.

So, in honor of the tour's DVD, we've taken a look back at Cyrus' life. Ahead, snaps from 2006 to 2015. Prepare to feel old.