Hitting the gym takes some serious motivation, so maybe that's why she brought celebrity trainer Pete Geracimo on her world tour last year.
Geracimo has made quite a name for himself, training A-listers like Adele, Kim Cattrall, David Hasselhoff and Pippa Middleton; but no matter who he's training, he makes sure to start off every client with a specific workout.
The said workout, which he calls Seven Minutes in Heaven, is made up of seven plank variations and is designed to strengthen the core.
“I love planks, and plank work," Geracimo says. "Because if you have any kind of back problems, doing crunches is not going to help."
Click through to see the seven-minute workout.