Britney went from the recording studio to the small screen on "How I Met Your Mother" -- and according to star Neil Patrick Harris, the pop princess has an open invite to return to the CBS hit. "The door is open for her," Harris tells People magazine. "We would love guest stars who get in the show's world to stick around if they want to -- but I don't know what the writers have planned."
Spears, who portrayed ditzy receptionist Abby on the show, experienced a relaxation on the closed set that is rare for paparazzi magnets such as herself. "There were wristbands that we wore, so people didn't come on to the set," said Neil. "In her world, people go up in the rafters and take pictures."
The actor added, "We wanted to give her the freedom in a closed environment to be as free to act, and fail, and succeed as she wanted to because that's the process of doing this. She was lovely, and those two weeks were actually quite swell for us." Ratings soared to record levels when Britney appeared.