The content of her music changed, her outfits got more risquè and let's not forget about that ~controversial~ VMA's performance where the singer twerked on Robin Thicke.
However, Miley has totally turned herself around since that craaaaazy time and isn't shy about looking back and laughing at herself.
So on VMA day, the star decided to give a little shoutout to her unforgettable 2013 performance on Twitter.
"Sorry Dad.... I'll be good tonight I promise ... @vmas," she wrote.
We bet Billy Ray would've appreciated that!
Miley is set to perform her new tune "Younger Love" and based on her Twitter warning, we're guessing it's gonna be a lot less twerking and a lot more strumming of the guitar.
Come at us Miley!