PHOTOS: Hollywood's hottest bad girls
So it was rather shocking when the "Tik Tok" singer, 24, arrived at the 2012 Genesis Awards in Beverly Hills, Calif. looking less wild than usual on Saturday.
She chose a lightning bolt-print jumpsuit, which flashed just a hint of her lacy black bra, a bright orange belt and multi-colored clutch.
Of course, her appearance wasn't totally restrained. Her sleek hairstyle showed off her half-shaved head and she rocked bold tangerine lipstick and sparkly gold eyeshadow.
Perhaps Ke$ha's stunning makeover for the March issue of Glamour inspired her to try out more sophisticated outfits for red carpet events.