Ooh, ow, knocked my knee on the sink. Hi, guys. My name's Isabella Boylston, and I'm a principal dancer with American Ballet Theatre. Today I'm gonna take you through my at-home workout ...

Isabella Boylston: Hi, I'm Isabella Boylston, and I'm a principal dancer at American Ballet Theatre. We showed Isabella 11 dance scenes from different movies and TV shows and had her dissect them.

Dancer Isabella Boylston is American Ballet Theatre's youngest principal ballerina. She joins Tanya Rivero to discuss her upcoming roles and her rise to the top of the ballet world. Photo ...