Twenty things you didn't know about Miley Cyrus, who turns 20 today

She's been famous since her early-teens, and former Hannah Montana star Miley Cyrus has hit the milestone of her 20th birthday.

Here are 20 fast facts about Miley to celebrate her big day. 

Click through the gallery to find out what her real name is, how she won the heart of actor Liam Hemsworth, and why her father wishes she'd never hit the big time.