Over the past six years, Billboard's staff has made its picks for the greatest pop star of every year, from 1981 to present. See our full updated list here.

The superstar helped put reggaeton on the map with a chart-topping discography ...

The special football event is happening at Levi's Stadium in Santa Clara, Calif., on Feb. 8 ...

Elton John claims to hate his first US No.1, but its nostalgic '50s vibe and iconic 'La-la-la' chorus made it a classic ...