Barre will change your body
Pure Barre is a ballet-inspired workout whose motto is "Tone, flex, burn." Or something else that lets you know it's going to be insanely painful.
They're not lying. The workout forces you to use muscle groups you didn't even know you had, essentially spending an hour on your tiptoes and/or leaning on a small wooden bar and lifting your leg 2in at a time while simultaneously flexing your abs.
After half an hour, you will believe your muscles are filled with battery acid.
When you invariably start shaking, the instructor says something like, "That's just the feeling of your body changing." Which sounded uncomfortably like advice I also got in seventh-grade health class. After a month of barre class, while I didn't exactly have a six-pack, I still had the best abs of my life.