The singer and former vocal coach on the hit TV show The Voice is no stranger to the ups and downs of weight, even after two pregnancies. After the birth of her daughter, Summer Rain, Aguilera shed almost 50 pounds by limiting alcohol and replacing unhealthy restaurant food with lean protein like chicken and shrimp. But the mother of two also keeps is real.

Christina told Maxim in 2013, “If I can squeeze in a workout, great. If not, that’s OK, too.”