Jennifer Lopez's claim to live a clean-cut lifestyle has been called into question after she was recently photographed smoking a cigarette.

The Maid In Manhattan actress has spoken about her decision to turn her back on unhealthy vices in a number of interviews.

She has said. "I don't smoke or drink. When I was little, my mother drummed it into me how bad it is for you, and it stuck somehow...

"I envy people who have releases. They just have a drink or a cigarette and they feel better."

But Lopez appears to have nobody to envy anymore - on 6 December (05), after shooting scenes for her movie El Cantante in a New York City graveyard, she was snapped puffing away.

The famous anti-smoker, who famously forced ex-fiancee Ben Affleck to give up his bad habit, seemed to be sneaking a cigarette when she was caught on camera by eagle-eyed fans, who have sold pictures of the puffing diva to America's top tabloids.

But the actress/singer's publicists insist Lopez hasn't started smoking - she's just getting used to the herbal cigarettes her character has to smoke in the biopic of HECTOR LAVOE, which also stars her husband Marc Anthony.

A spokesman for Lopez insists, "It's not a real cigarette; it's a prop."