London, Dec 28 - American singer Norah Jones has said turning 30 helped her record a "more personal" album.

The "Don't know why" singer believes reaching the milestone in March forced her to reassess her life and had a change in her creative approach to making her new album "The Fall", which has sold over half a million copies since being released last month, reports tourdates.co.uk.

"It seems to be an age where everyone goes through changes. All my good friends have. Everyone's either breaking up or getting involved or married or having a baby," she said.

"So when I made that album I think I was looking outside myself more at that time, because of where I was and what was going on in the world. The past couple of years, though, I've looked inward more," she added.