Talk about Kevin Federline's ghastly weight gain all you want.
"He doesn't care," his ex Shar Jackson told Usmagazine.com at HBO's post-Emmys party in Los Angeles Sunday. "The beautiful thing about him is that he could care less."
As his ex Britney Spears continues her Circus tour, he's been on the road looking after their sons Sean Preston, 4, and Jayden James, 3.
"He calls them all the time," she told Us. "They have good long phone conversations. I’m like, 'Ok, that's good. Hang up the phone 'cause we have stuff to do.'"
"She seems like she’s doing well," Jackson told Us of Spears, who was hospitalized twice in 2008. "Good for her."