Britney threatened to ditch her VMA performance just minutes before she took the stage. Want to know why? Britney overheard Sarah Silverman rehearsing her monologue in which she calls Britney's babies mistakes and takes jab after jab at Britney.
Britney made it very clear with MTV that Sarah was NOT allowed to talk about her kids, and MTV agreed. That big-mouthed bitch said it anyway.
Sam Lufti was overheard backstage screaming at Sarah Silverman because of her outrageous remarks saying: "Sarah Silverman is a seriously unprofessional person to make fun of infants to get a laugh. Making fun of kids is not condonable," and that "she should have picked on someone her own size."
Perhaps this why Britney looked upset during her performance.
While it is Silverman's job to get a laugh, it should not be at the expense of little babies. Your career must be hurting if you have to turn to bashing infants in order to gain a laugh. You'll get what's yours.