Hmm, I remember that as live-action, but I think it did have an anime based on the first series.
There's a pretty good info page on it at the encyclopedia Idollica (http://www.idollica.com), if you wanna check it out. It's very late 80s, and very camp.
I even have a record (as in vinyl) of one of the stars from the 3rd series...wow, I feel so nostalgic now...I dunno of what though, since I've never lived in Japan...