For Rita Wilson, body positivity isn't all sunshine and rainbows.

The actress and country music singer, who was diagnosed with breast cancer in 2015, opened up about how the health battle impacted her body image in an interview with People magazine published Saturday, May 9.

Wilson explored the topic on her song "Whose Body is This," which is featured on her new album "Sound of a Woman." The track's lyrics tackle the conflicting feelings that someone can feel toward their physical appearance after undergoing a significant change, such as childbirth.

"This body of mine, it came out the other side / No matter how I tried, it taught me to survive," Wilson sings. "And I'm grateful for the broken bits / But the question is: Whose body is this?"

"These parts of your body that had been there for you in such a beautiful way were gone," Wilson, 69, told People of her cancer journey. "I'm very grateful that there are things nowadays in modern medicine like reconstruction and implants, because in my mom's generation, if you had breast cancer, that was it. There was nothing. You were left with sort of a shadow."