Shar Jackson to Brit: ‘Spend More Time With Your Babies!’

Kevin Federline's ex Shar Jackson is giving “Extra” a piece of her mind about Britney Spears.

“I personally think, as a mother, spend more time with your babies,” Shar said.

Shar, mother of Kevin's two other children, also called K-Fed “an amazing father” and gave Britney some parenting tips.

“You don't have to go out clubbing and stuff all the time,” she said. “Just stay home and get to know your kids.”

That's exactly what Britney did last night before she went to a string of Hollywood parties. She spent an evening with Sean Preston and Jayden James for Halloween before Kevin's team picked up the boys and left her free to party.

First, Brit hit Heidi Klum's costume bash wearing little more than stockings and a long-sleeved shirt. She partied all night with pals Alli Sims and Sam Lufti by her side.

Later she added a giant hat to her eclectic outfit and paraded around town. When paparazzi complemented her on the sombrero, Brit asked, “What's a sombrero?”

Though Britney's constant partying throughout her custody battle has tarnished her public image, it hasn't affected album sales.