Pakistan, Jan. 21 -- Dolly Parton has addressed concerns about her health while celebrating her milestone 80th birthday.

The legendary country music star marked the occasion on Monday and shared a positive update in an interview with People. The 80-year-old reassured fan as she revealed that after a year filled with doctor visits, she is now "doing fine" and remains optimistic about the future.

"People say, 'Well, you're going to be 80 years old.' Well, so what?" Parton said. "Look at all I've done in 80 years. I feel like I'm just getting started. I know that sounds stupid, but unless my health gives way, which right now I seem to be doing fine.'

The singer acknowledged that her outlook depends largely on her health, but stressed that...