United Kingdom, Feb. 1 -- Katy Perry doesn't listen to her critics.

The 40-year-old pop star is one of the best-selling music artists in history, but Katy doesn't pay any attention to what critics say about her.

The singer - who released her latest album, '143', in 2024 - told PEOPLE: "You shouldn't read it when it's good. You shouldn't read it when it's bad.

"My therapist said something that really changed my life. What anybody thinks about you is none of your business. It's what you think about yourself."

'143' hasn't achieved the same commercial success as some of Katy's earlier releases. But the 'Woman's World' hitmaker still feels proud of the record, and hopes it can become "the soundtrack for anyone's life".

Katy said: "I crea...