Muhammad Ali, seen here in a 1967 photo, cemented his place in boxing history for all time with a stunning eighth round knock out of unbeaten and seemingly unbeatable heavyweight champion George Foreman in Kinshasa in October 1974.
Joni Mitchell wrote "Woodstock" - the most popular song about the festival - but didn't attend the event because she was booked on The Dick Cavett Show.
The MTV classic "Voices Carry" is by 'Til Tuesday, a group fronted by Aimee Mann. She wrote the lyric about a friend who's partner wanted to keep their fling a secret.
Beyonce Knowles and Michelle Williams wrote the Destiny's Child song "Girl" for Kelly Rowland as an encouragement for her to end her relationship with a verbally and physically abusive boyfriend.
The 1979 song "Life During Wartime" by Talking Heads deals with how technology could be exploited to take down the framework of society and enable government surveillance.
"I Guess That's Why They Call It The Blues" by Elton John was written for the sister of actress Rene Russo. Bernie Taupin, who wrote the lyrics, was married to Rene's sister, Toni.
"Love Is A Battlefield" was written as a ballad, but Pat Benatar's guitarist/husband turned it into an uptempo song.
Medley looks back on "Unchained Melody" and "You've Lost That Lovin' Feelin'" - his huge hits from the '60s that were later revived in movies.
Is "Have You Ever Seen the Rain" about Vietnam? Was John Fogerty really born on a Bayou? It's the CCR edition of Fact or Fiction.
Brenda talks about the inspiration that drove her to write hit songs like "Get Here" and "Piano in the Dark," and why a lack of formal music training can be a songwriter's best asset.
The Sevendust frontman talks about the group's songwriting process, and how trips to the Murder Bar helped forge their latest album.
Katy Perry mentions McDonald's, Beyoncé calls out Red Lobster, and Supertramp shouts out Taco Bell - we found the 10 restaurants most often mentioned in songs.
Songs about drugs, revolution and greed that have been used in commercials for sneakers, jeans, fast food, cruises and cars.