f(x)'s Sulli revealed her bold side once again! On February 3rd, Sulli showed off her childhood photo through�KBS 2TV's "Lunar New Year Special Idol Brain Competition." Slyly, the f(x) member quipped, "I think I'm prettier now," causing everyone to howl with laughter. Sulli is known as a 'bold celebrity' for daring to show off her pre-debut photos, but she�later backed up and apologized to show modesty. Source: Newsen via Nate