Christina Aguilera
In 2013, Aguilera said she took a break from The Voice to dedicate time to your body and your journey towards your ideal weight. “I finally got a break and spent some time with my son. Being able to breathe and have time off camera and reflect on the things that really matter was what allowed me to come back renewed,” said Aguilera, in an interview with Us Weekly. The magazine Life & Style shared the singer's diet, which consisted of healthy fats, proteins and fruits, as well as an occasional glass of wine. With this, Aguilera managed to lose 23 kilos.