Tiffany? Atlantic Starr? Cutting Crew? Samantha Fox? White Lion? Vixen? Captain & Tennille? Lulu?

Pick a year. Look for names you don't hear being played anymore in spite of the fact that the were pretty significant at the time.

There are quite a lot of them.

Or pull up Old Grey Whistle Test or The Midnight Special episodes. There will always be a couple clunkers that were big at the time.