Robin, feeling left out as the single girl in her group, bonds with a group of single party girls she calls the wooo girls. Jamie Lynn Sigler guest stars as one of the girls.
Lily attempts to join the group of woooo girls, but when she lacks the necessary cowboy hat she rocks a firefighter hat she got from fire safety in school. Hawt.
Marshall, Ted, Robin and Lily all stand outside the house in "The Stinsons." In this episode, the guys meet Barney's wife and child they never knew existed.
In this flashback after the credits, it turns out Robin was actually the one to suggest the Old King Clancey to her Canadian "celebrity" she went home with.
Cobie Smulders plays Robin Scherbatsky, a love interest for Ted at the beginning of the show and eventually just a good friend to the group. Robin hails from Canada.
