I would like to think she isn't MOTHER, because I'm very convinced, she is!
E! reports, Britney Spears will be guest appearing on the show, in its 14th episode. Her role is described as sweet and nerdy and she will be playing Abby, a character working at a doctor's office (and the doctor happens to be Alicia's character?)
How I Met Your Mother returns to TV March 17. Whoohoo!