Flashback Clip: Leighton Meester on Law & Order in 1999 — When She Was Only 13! (VIDEO)

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Credit: Ben Watts via Lucky Magazine

Before she was bossing around her headband wearing minions on Gossip Girl, Leighton Meester (Blair) was an adorable child actress! This gal cut her acting teeth on everyone's favorite crime drama, Law & Order, when she was just 13-years-old. That's right, the 90s are calling.

Check out this clip of Leighton as a sweet and naive student who has the scoop on her friend's death. Could she be more charming? Plus, this dialogue is killer. "She's, like, hyperactive, or something" might just go down as our favorite Leighton quote of all time.

Sigh, might be time for another Law & Order marathon –– but then we'd probably spiral into a 90s coma and start wandering around in flared Gap jeans.