On February 1, the former f(x) member posted a photo of herself donning a curly short hairstyle with bright red lipstick, emitting a throwback vibe.

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Seeing this, netizens commented, "Digging the hippie perm," "Femme fatale suits Sulli the best in my opinion," "So that's what an auntie perm looks like."

Do you find Sulli's new look attractive?

A post shared by ????? (@jelly_jilli) on Feb 1, 2018 at 5:03am PST