Sia shocked and surprised everyone when she made a rare public appearance without wearing one of her signature wigs. According to Business Insider, the Australian pop-singer attended a Netflix "Ozark" Tastemakers Event in Los Angeles on Tuesday sans hair accessories. The award-winning singer, songwriter, and producer made an appearance at the star-studded event looking unrecognizable in a classic all-black outfit with a trendy Chanel purse around her waist.