British pop star Lily Allen has toned down her saucy live shows at the request of her husband.

The Smile hitmaker relaunched her music career at the end of 2013 after taking time off to raise her two young children, two-year-old Ethel and 15-month-old Marnie.

However, Allen's husband Sam Cooper asked the pop star to clean up her behaviour during gigs after becoming concerned their daughters might one day see her simulating sex acts on stage.

Allen tells Britain's The Sun newspaper, "He told me to tone it down now I'm a mum. On my last tour, when I sang Not Fair, I used to act out fellatio using my microphone. Recently I have been rehearsing for this new tour and Sam said, 'You're not doing that thing again are you?' I said not if you don't want me to. And he said no as he didn't think it was good for the kids."