[aside to camera:]
Leslie Knope: Tonight's biggest surprise is 5 years in the making. It all goes back to when I first met my best friend.
[flashback:]
Ann: I'm here to talk about the abandoned lot on Sullivan Street. I've been trying to get this thing fixed for months, and it's government-owned and you need to do something about it.
Leslie Knope: I will help you.
Ann: Is that a promise?
Leslie Knope: It's more than a promise. It's a pinky promise.
[back:]
Leslie Knope: That promise launched a friendship so grand it takes 103 scrapbooks to capture it. I have secretly arranged to officially break ground on Pawnee commons at midnight, fulfilling my pinky promise that I made five years ago. Oh, ice cream sandwich taste test! That was our biggest fight.