"Hyperactive!" is a single by British musician Thomas Dolby, taken from his second album The Flat Earth, released in 1984. Additional vocals were provided by Louise Ulfstedt. According to Thomas Dolby, he initially composed the song for Michael Jackson, whom he met in 1982. He decided to record it by himself since he never got any feedback from Jackson after sending him a demo tape. It was the first single to be taken from the album and peaked at number 17 on the UK Singles Chart and number 16 on the Canadian RPM Magazine charts, but only reached number 62 on the US Billboard Hot 100.