(In 2018, the Billboard staff released a list project of its choices for the Greatest Pop Star of every year, going back to 1981. Read our entry below on why Prince was our Greate ...

The collection includes Lauper's eight Billboard Hot 100 top 10s, achieved in 1984-89, including her breakthrough classic "Girls Just Want to Have Fun" and the No. 1s "Time After Time" and "True ...