After hearing reports of tensions brewing between her little sis and co-star Alexa Nikolas, the pregnant singer rushed to the TV set to defend her 13 year old sister Jamie Lynn.
However, a ‘source’ told Pagesix.com that Britney “proceeded to scream that Alexa was an 'evil little girl,' and that she had better watch herself or she 'will never work in this town again!â€.
Spears has denied these reports, maintaining that she had acted how any big sister would have, a spokeswoman for Britney said: "Jamie Lynn and another girl on set were having problems, as 13-year-olds do.
"Britney did have words with the girl, but felt she was sticking up for her sister. She did not yell by any means, she just gave the girl a sisterly talking to and wondered why they just couldn't all get along."
However, an on-set source has said: "Alexa was in tears. She was sobbing and totally upset - it was totally uncalled for.
"While Jamie Lynn is the star, Alexa still works there. And the fight was a petty, 13-year-old thing between Alexa and Jamie Lynn, who is becoming a real pest. Britney should have stayed out of it."
Britney Spears is due to give birth next month; maybe the hormones are getting to her…