This week marks 20 years — yes, 20 — since the guys of *NSYNC first met, so what better way to celebrate than with a look back at some of their best music video moments? The group's anniversary falls on Oct. 1, and although the band is obviously not together anymore, they did acknowledge the big day last year, tweeting, "19 years! Can you believe it?" And, well, the answer is no, no we cannot. Two decades?! It seems like just yesterday we were introduced to a young, curly haired Justin Timberlake, and now, of course, he's a dad! For a fun dose of nostalgia, celebrate 20 years since the boy band's beginnings with these 20 old-school *NSYNC moments!