Keri Russell never got over that Felicity haircut

Getting an impulse haircut and having it become a national punchline can sure leave an impression on a girl. When Keri Russell cut her hair in 1999 during Felicity’s second season, viewers were outraged — and so were network executives. "You diluted that icon," said then-WB Entertainment president Susanne Daniels of the haircut. "I think it turned some audience away, in particular men and some women." Felicity’s ratings plummeted, and the WB banned the top-billing stars on its hit shows from cutting their hair short.

So when Russell appeared on Late Night With Seth Meyers Wednesday to send a message to her younger self, her advice was clear and simple: "Whatever you do, don’t cut your hair short during the second season of Felicity." Otherwise, Russell warns, "You will never, and I repeat never, forgive your fans."

Also featured is John Stamos, who has absolutely no regrets about selling his soul to the devil in exchange for eternal youth (we knew it all along), and closeted Batman fan Henry Cavill, who doesn't have the heart to tell his younger self who he'll be playing in the new Batman movie. John Goodman's long, shaggy-dog story about being stalked by a one-eyed duck might go on forever, but it's worth watching to the end just to see Goodman sell it as hard as humanly possible.