Barbie and the Rockers, Plot
Barbie's rock band has just completed a successful World Tour and decides to perform one last concert in Space, while orbiting the earth, to promote world peace. Then in Part 2 ("Barbie and the Sensations"), when Barbie and her band, whose name has unexplainably been changed to the Sensations, come back to Earth, they find that they have inadvertently traveled back to 1959 (which happens to be the year the first Barbie dolls were introduced).