New York: Soccer player David Beckham says his new born daughter Harper is making him go grey.

The 36-year-old, who also has three sons with Victoria, admits the stress of raising four children is starting to take its toll, according to reports.

"I got my first grey a few years ago, and a couple more since we've had the little girl," Beckham said.

The athlete also said he's starting to feel his age as he now has more aches and pains when he wakes up.

"I definitely feel different than I did 10 years ago. It takes a while for the Achilles to warm up. Once I've had my coffee, I'm good," he added.

Beckham recently launched his own fragrance and has a signed a deal to design his own leisurewear and underwear and insists he is completely involved with everything.

"I'm totally involved in everything that goes out there in stores. I don't just sign with a company and give my name to do whatever they want. Everything that goes out there is something I would wear," he added.