The Human League
Then: The Human League formed in England in the late 1970s and quickly won credibility in the art-rock community, but a lineup change in the early 1980s turned them into more of a mainstream synth-pop act. It was the perfect time for such a switch, and "Don't You Want Me" became a massive U.S. hit. (The song was originally written as a solo, but lead singer Philip Oakley recruited back-up singer Susan Ann Sulley to tell the story from a woman's perspective.) The group scored again in 1983 with "(Keep Feeling) Fascination." The group's commercial fortunes seemed to be spiraling downward by 1986, but they shot right back with "Human," which went to Number One in America. It was their last big hit here.
Now: Human League are widely dismissed as three-hit wonders in America, but they've held onto a following in Europe. Last year they released Credo, their first LP in a decade. They are a regular presence at European 1980s revival festivals, and this year they're playing the Royal Albert Hall in London and many other venues in England and Germany.