Kesha has previewed some new music on social media, hinting that her next era is about to begin – check out the posts below.Yesterday evening (March 6), the singer-songwriter shared a 42-second video soundtracked by a snippet of an ethereal unheard song. “I’ve been waiting for you, everything’s changed now,” she sings.The grainy, vintage-looking footage sees Kesha disrobe and walk into a stream.