Sade often considers retirement.

The 'Smooth Operator' singer admitted she sometimes thinks she wants to give up, but can't follow through.

She said: "Is it still worth it? I think it is. After every album, I think, 'Right that's it, no more.'

"But how lucky am I at my age still to be doing this without any outside pressure?"

Despite music bringing in the money for Sade, she admitted that being a mother to her daughter Ila has been the hardest job she has undertaken.

She said: "Being a mother is the biggest and hardest job I've ever undertaken.

"I'm not complaining but I've never had a nanny. For years after she was born I put Ila to bed every night. As soon as she arrived she became the centre of my life."

The 51-year-old added that she has previously taken her daughter on tour, but didn't expose her to the crowds.

She told the Sunday Times Magazine: "I didn't let her see any of the concerts because I didn't want her to hear people shouting for her mum. She wasn't ready for that."