United Kingdom, Sept. 14 -- Jessie J credits music with helping her cancer recovery.

The 37-year-old pop star underwent surgery for early-stage breast cancer in June and says "the joy [she] feels when she sings is the greatest healing".

Jessie told Brazil's G1: "It's been like this since I was a kid. And I've been sick since I was a kid. I've been in hospital with heart problems, strokes, and all these things, and music has been my support throughout my life. So for me, these things go together. [Music] is like a natural, good, healthy drug."

And Jessie revealed her cancer diagnosis has given her a new outlook on life.

She said: "I don't want to say [I'm thinking about] death, but when something like cancer knocks on your door, and yo...