A key line in "Africa" is "I seek to cure what's deep inside, frightened of this thing that I've become," which is about drifting away from what you really want in life. Toto keyboard player David Paich, who wrote the song, felt his work was consuming him.
Chaka Khan's hit "I Feel For You" was written and originally recorded by Prince 4 years before she covered it.
Elvis Presley's "A Little Less Conversation" was just a minor hit when it was released in 1968, but a 2002 remix made the song a global smash, taking it to #1 in a number of countries, including Australia and the UK.
Pete Townshend wrote The Who's "Pinball Wizard" to coax a good review for the Tommy album out of a rock critic who loved pinball. It worked.
"Stand By Me" hit #4 in the US when it was released in 1961, then went to #9 in 1986 when it was used in the movie of the same name.
"This Must Be The Place" is a rare love song by the Talking Heads, with a very personal lyric from David Byrne likely inspired by the woman who became his first wife.
Some songs get a second life when they find a new audience through a movie, commercial, TV show, or even the Internet.
From "Some Day My Prince Will Come" to "Let It Go" - how Disney princess songs (and the women who sing them) have evolved.
Soul music legend Bill Withers on how life experience and the company you keep leads to classic songs like "Lean On Me."
Smith breaks down some of his worship tracks as well as his mainstream hits, including "I Will Be Here For You" and "A Place In This World."