Kevin Federline Changes Diapers

In a new Access Hollywood interview, Britney Spears's mother, Lynne says Kevin Federline is a hands-on dad reports People Magazine

"Kevin does change diapers,"

Lynbe also says she shares a close bond with her 27-year-old son-in-law, who recently released his first music single "PopoZao." "It's very special. I'm very close to Kevin."

Federline is such a committed dad that he skipped a New Year's Eve release party in Las Vegas for his debut single to spend a little quality time with Britney.

The new grandmother adds that parenthood has brought a lot of joy into the pop star's life.

“She's very happy,� Lynne said.