Britney Spears Blows Up At momma?

An eyewitness on the set of Zoey 101, the TV show staring Britney Spears's younger sister Jamie Lynn, 14, tells Star Magazine "Britney was screaming at her mom. She was furious, swearing and cursing. Her mom burst into tears at one point but Britney didn't seem to care or notice." The fight erupted just as Britney, 23, and Lynn, 50, were leaving the set for the day. "Britney began yelling at her, saying that her father [Jamie, 52] was sometimes not there for her and that Kevin will be the best father for her baby," the witness said. "Britney's mom got really upset and began to cry. She told Britney Spears that her father does love her and that he did the best he could for the children. "But Britney just wouldn't listen. She got into her car and sped off, screaming 'F**k you, momma! 'Everyone was really shocked and stunned."