In 2010, the biggest-selling song in the UK was "Love the Way You Lie" by Eminem.
The first version of The Beatles' "Helter Skelter" was a 27-minute jam, so you can imagine what Ringo was going through pounding away on drums. To convince the guys he needed a break, he screamed, "I've got blisters on my fingers!" This was included on the fadeout.
You wouldn't know it from the upbeat melody, but "Walkin' On The Sun" by Smash Mouth is about the 1992 Los Angeles Riots.
Meghan Trainor wrote "Lips Are Movin" in just eight minutes with her writing partner Kevin Kadish. Inspiration for the song was frustration with Trainor's record label.
Joni Mitchell's "Big Yellow Taxi" is about the commercialization of Hawaii. On her first trip to the islands, she looked out of her hotel window and saw a parking lot as far as the eye could see.
If you have a whole day to kill, you can check out the full version of Pharrell Williams' "Happy" music video, the world's first 24-hour music video.
Lots of life lessons in these Eagles lyrics - can you match them to the correct song?
John Lennon, Paul Simon and Lynyrd Skynyrd are some of the artists who have written revenge songs. Do you know who they wrote them about?
Soul music legend Bill Withers on how life experience and the company you keep leads to classic songs like "Lean On Me."
It took him seven years to recover from his American hit "Fool (If You Think It's Over)," but Chris Rea became one of the top singer-songwriters in his native UK.
Graham Nash tells the stories behind some of his famous songs and photos, and is asked about "yacht rock" for the first time.
Was a Beatles song a TV theme? And who came up with those Fresh Prince and Sopranos songs?