Anniversaries

At one point the Swedish pop group almost gave the song to another band.

The former threw the gauntlet down before embarking on the latter's 'British Steel' tour.

"We were all very tired and under pressure and it just came to a head," he later explained.

The founding guitarist left the group soon after what he later admitted was a "very disrespectful" act.

At 15 years old, Hendrix started his six-string journey.

"Everyone knew we wouldn't do it," Bjorn Ulvaeus said years later.

Not everyone was on board with a 15-year-old becoming part of the band.

The former member of Pink Floyd struggled through the recording of his debut solo album, and so did the people around him.

A guitarist with a broken finger and a singer with the flu? Just another day on the job for rock's biggest band.

It was the second straight time that replacing 'The Tonight Show' host left NBC with egg on their face.