7Confessions: The Truth About Britney Spears on ‘How I Met Your Mother’ Set

This latest news to come out on Britney Spears special appearance on ‘How I Met Your Mother’ contradict what was first told by cast member Josh Radnor.
Despite Britney Spears’ appearance on ‘How I Met Your Mother’ getting the show its highest ever ratings, and being hailed a ‘comeback’ for the troubled star, her three-day stint on set of the CBS sitcom was a “pain”, and caused delays in filming due to her “erratic demeanor”, insiders claim.“Her mood changes are so sudden, you don’t understand where they’re coming from,” the insider tells.
And at one point, the Toxic star got into a telephone fight with younger sister Jamie Lynn — because the pregnant teen had called Britney’s ex, Kevin Federline. Standing in a hallway, says a source, Britney was heard shouting into the phone, “You’re turning on me like everyone else. First Mama wanted to sleep with Kevin and now you’re calling him. And you live in a house I paid for!”
The 26-year-old then started asking people on the set if they liked puppies.
“It was a pain having her on the set,” the insider says. “She made everything take so much longer because of all the drama she caused. Almost no one wants her back!”
During her 4 minutes on screen, Britney Spears had 8 costume changes (photos) so that must count as an excuse to being late!