Jem and the Holograms
Jem and the Holograms was a carton that aired from 1985 to 1986. The animated series was essentially about music company owner Jerrica Benton (stage name "Jem") and they adventures she had with her band (the Holograms). Jerrica was able to transform into "Jem" using a holographic projection device created by her late father. She was also able to use her earrings to project other holograms which would help her get out of scrapes.
The toys released during the show's run primarily revolved around Barbie like dolls, and not just Jem. There was also View Master slides, shirts, clocks, etc. At the time of this writing in late 2014, Jem was as popular as ever, and a live-action, motion-picture was under development, and new Jem toys were being manufactured well into the 2010's.