I don't think it was a daily routine like many of the hair metal bands chose but some of the 80's film clips everything was too perfect. When videos really started to become a production rather than just pictures to a song I think many 'hollywood' tricks became the norm. Shit like the fast cutaways, the overlays, the film splicing, directional lighting and other such things were added to 'improve' the image so I would reckon the producers brought make up and hair spray along with all those things.