Pop stars sure typically have the longest shelf life. For every Madonna, who’s been around for almost four decades, you have about 20 has-beens or never-wases. There are a slew of one-hit wonders in the genre for a reason: It’s…

Pop stars sure typically have the longest shelf life. For every Madonna, who’s been around for almost four decades, you have about 20 has-beens or never-wases. There are a slew of one-hit wonders in the genre for a reason: It’s…