Shar Jackson Weighs In On K-Fed

Kevin Federline's taken some heavy criticism for all the weight gain he was showing on the golf course this weekend - but at least he's got some pretty surprising people coming to his defense!

"It's daddy weight!" Kevin's ex-wife Shar Jackson told Us earlier today. "When you are a full time parent, sometimes you can't focus on you. If gaining a few pounds is your only problem, life's not too bad!"

The mag also spoke to Federline's rep, who pointed out that "people tend to gain weight when they are home with the kids. He's very happy with the way he looks.”

Hey, if Kevin's happy with his looks, so be it - but if he wants to avoid another uproar like this in the future, he might think about switching to Diet Coke!