Maddie Ziegler

From Bieber's butt to 'Miley, what's good?', these are the scandals that rocked 2015.

TIME magazine's annual list of the most influential teens is a mishmash of young achievers, ranging from celebrities, entrepreneurs, social activists and everyone in between.

It's like the old saying sort-of goes: Dance what you know! Chloe Sevigny narrates the clip, which arrives one week before Maddie's birthday.