Ke$ha's style has largely been characterized by mohawks , gold teeth , glitter and even a partially shaved head bedazzled with studs .

In fact, she has previously described her look as both "a cross between Keith Richards and a hobo ... a really, ridiculously hot hobo" and "a homeless clown ."

But when the "Die Young" singer arrived at New York's John F. Kennedy Airport Monday, none of her sartorial hallmarks were on display. Ke$ha sported a natty chevron-print suit, chic floral blouse and fedora, and was barely recognizable. Perhaps she was going incognito to hide from her ghost ?