Anniversaries

In 1996, their summer tour — including their legendary stop at Knebworth — completely sold out in just nine hours.

"That song," manager and producer Andrew Loog Oldham later admitted, "was going nowhere."

It took place at Birmingham University in England, where only around 300 people got to attend.

The blues legend was 70 years old.

"I leave it in your capable hands," the note reads in part.

The "Purple Rain" singer was just 57 years old.

It was 1959, and the future Rock & Roll Hall of Famer was just 13 years old.

It made the song's writer, Hoyt Axton, and his mom, Mae Axton, the first parent/child combination to each have a No. 1 hit on the singles chart.

The singer kept his deteriorating health private for several years.

Upon its release, it became their first single to chart in the U.S.