
In the late '70s, John Lennon slowed his roll, becoming a househusband who baked bread and took care of his young son Sean. This inspired his song "Watching The Wheels," where he discovers the benefits of taking it easy.

"Girl Crush" by Little Big Town came from the hashtag #girlcrush, which its co-writer, Lori McKenna, spotted on Instagram.

It was never a big hit, but the uplifting "Mr. Blue Sky" has endured as Electric Light Orchestra's most popular song. Group leader Jeff Lynne wrote it when after two weeks of gloomy weather, the clouds parted to reveal a beautiful day.

"She Loves You" by The Beatles was the song that convinced Ozzy Osbourne to make music his life. The Beatles were a big influence on him because they were also poor kids from a small town in England.

The Hollies' 1967 hit "Carrie Anne" is about the British singer-actress Marianne Faithfull, but with "Marianne" changed to "Carrie-Anne" to disguise it. Faithfull dated Allan Clarke of The Hollies.

Christina Perri's "Jar Of Hearts," written about her ex, became a big hit after it was used in a routine on So You Think You Can Dance.
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