Netizens are buzzing over some past photos of�f(x) from their pre-debut period.

The photos were uploaded through�DC Inside, and were titled,�"f(x) rehearsing before their debut".

Fans were charmed by their fresh faces and their adorable butterfly hair knots.�Their youthful charm was further accentuated by their long, black hair.

Netizens commented after viewing the photos, "Wow, Victoria is really beautiful without makeup", "Is that really Luna? She looks so different!", "So slim! They are really hardworking", and "They all look really good without makeup."

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Source: Star News via Nate
Photos: DC Inside