Madonna’s daughter, Lourdes, is known for her fashion sense and for trying out new things with her style, and her latest look is a little bit punk rock.

The 16-year old was snapped recently in New York sporting bright green tresses, and though she kept the rest of her look simple in a t-shirt and jeans, her hair is getting some attention. Like most teenagers, however, she seems to just enjoy sampling new things, and hair color is an easy thing to change. Mom Madonna says she’s not very strict when it comes to certain things, something she wants to work on.

“I’m probably not as tough as I should be. I think I need to be maybe tougher,” she said.

But being one of the most famous and recognized faces in the world does add a certain amount of stress to her plate, and the Material Girl says she’s just doing her best to get through the day.

“To be a single mother of four and to work as much as I do, and live my life in a kind of metaphorical fish bowl, it’s pretty challenging,” she said. “But so far I’ve survived with sanity and humor intact.”

Lourdes is Madonna’s daughter with ex Carlos Leon; she also has a son, Rocco, with film director Guy Ritchie and both a son and daughter whom she adopted: David and Mercy.