Every song of the summer from the past 50 years

• Every year, music fans wonder which song will be crowned the "song of the summer." • Business Insider uses Billboard charts and streaming stats to determine the season's defining hit. • This year, the title goes to Alex Warren's "Ordinary." Our list below goes back to 1975.

"Song of the summer" is a subjective title by design; one person's go-to beach jam is another person's radio slop. Still, hard data — like Billboard chart positions and streaming stats — can point us in the direction of a zeitgeist-capturing hit.

Keep scrolling to see every song of the summer from the past 50 years, listed in reverse chronological order.

Anjelica Oswald contributed to an earlier version of this story.

Despite a lukewarm reception from critics and many pop fans, Alex Warren's breakout hit "Ordi