Concert Poster for the band Rabbit featuring one mysterious girl with an aesthetic of broken hearts and skulls intertwined within a theme of purples, pink, and black. The art style embraces bold black silhouettes with an ultra-high-definition, high-dynamic-range 8K quality. Envision an enigmatic character resembling a Dark Sushi Mix Model, where the atmosphere is haunting yet mesmerizing. The imagery should reject concepts like disfigurement or mutation, instead focusing on elegance and captivating beauty. Avoid low-resolution elements, watermarks, logos, or text overlays. The poster should encapsulate an abstract blend of mystery and allure with clear, seamless imagery.