Olivia Newton-John

He begins with, "Our love for each other transcends our understanding."

"You are my lighthouse mama," Lattanzi writes.

The singer and actor both paid tribute to Olivia Newton-John after her death.

Urban and his wife, Nicole Kidman, offered a touching memorial statement for Newton-John in the wake of her death.

Olivia Newton-John performed many times during her career in Iowa.

She was one of the biggest multi-genre stars of her generation.

She's staying positive despite a grim diagnosis.

Women have ruled the country charts for decades by singing about far more than just love and heartache.

These stars have battled the life-threatening disease.

The Hollywood Walk of Fame features everyone from actors to radio personalities, and there are plenty of Nashville names enshrined there.