Airhead by Meg Cabot

A brilliant, science-minded teenage girl is severely injured and wakes to find her consciousness implanted in the body of a famous, glamorous pop star; forced into a world of tabloids, fashion, and people who assume she’s superficial, she must conceal her true identity while juggling invasive media attention, complicated relationships with family and friends, and a growing romance, all as she uses her intelligence and resourcefulness to preserve who she is and fight those who would exploit her new life.

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