We've got a total fit crush on Carrie Underwood. She's a working mom, an entrepreneur, and still SO healthy. And while it can seem virtually impossible to maintain a diet or an exercise routine on the go, Carrie seems to have mastered it. She travels all the time for her career, whether she's launching an activewear collection or on a concert tour. If you're wondering, "how does she do it all?" we wondered the same thing — so we asked! Here are five things we learned from her crazy schedule and healthy habits.