The 40-year-old singer, who has been single since splitting from Thomas Starr, said she often forgets her own age when she checks out guys, reported Contactmusic.
"It's funny - I see all these beautiful young girls with amazing jobs and I'm like, 'Where are their guys at?' My problem is I'm going 'He's quite cute', to guys who are obviously much too young for me.
"Then I look in the mirror and go 'Crap! I'm not 25 anymore!' If someone came along that would be great. But I'm a mummy and my career is important to me," she said.
"The beauty of age is I'm more relaxed about things now. My priorities changed when I became a mum. The negatives are the physical things, like wrinkles. Yuck! But I'm honestly happier now than I was in my twenties.