United Kingdom, Oct. 15 -- Katy Perry says becoming a mother is "the best decision" she has ever made in her life.

The 40-year-old pop star dedicated the song ALL THE LOVE to her five-year-old daughter Daisy Dove - her child with former partner Orlando Bloom - as she performed her Lifetimes Tour show at The O2 in London on Monday night (13.10.25).

Katy told fans that being a mother Daisy - who was the inspiration for the lyrics to the track, which features on her latest album 143 - has changed her life for the better.

Perry also dedicated the song to her own mother Mary Perry and her sister Angela who were in the audience with Daisy.

According to ContactMusic.com, she said: "I want you to raise your hand if you're a mother or if you'r...