Jennifer Lopez, 49, poses nude as she says 'I've taken care of myself and it shows'

Jennifer Lopez posed nude with a green cape covering only her chest and her hand on her backside.

The 49-year-old Second Act star looked flawless.

And she told the December issue of InStyle magazine it's been a lot of hard work: 'I've taken care of myself and it shows.'

And Jenny-Lo shared some of her tips: she does not drink caffeine, she avoids alcohol and she gets lots of sleep.

Often the siren is in bed by 10 pm.

But even though she weight trains almost every day, she says she still gets pain in the middle of her back.

Lopez also touched on growing up with more curves.