After Miley Cyrus Got Candid About Working Out In Heels, Here Are More Times That Celebrities Wowed The Internet With Their Super-Human Training Routines

“Every day I would run on the treadmill, singing the entire set list out loud,” she told Time last year. “Fast for fast songs, and a jog or a fast walk for slow songs.”

“Then I had three months of dance training, because I wanted to get it in my bones,” she said. “I wanted to be so over-rehearsed that I could be silly with the fans, and not lose my train of thought.”