New York, Aug. 7 -- Aging rock star Roger Daltrey of The Who believes his touring has affected his health.

In an interview with The Times published on Aug. 1, The Who frontman got candid about his health when discussing whether or not his band would tour after their The Song Is Over tour, per PEOPLE.

"This is certainly the last time you will see us on tour," the 81-year-old singer said. "It's gruelling."

"In the days when I was singing Who songs for three hours a night, six nights a week, I was working harder than most footballers. As to whether we'll play [one-off] concerts again, I don't know. The Who to me is very perplexing."

The "Pinball Wizard" singer said he is fortunate that his "voice is still as good as ever." "I'm still singi...