The actor Dan Aykroyd sang on "We Are The World." LaToya Jackson did too, so we know they weren't all that picky.
"Constant Craving" by k.d. lang deals with principles of Buddhism, including the cycles of birth and death.
"Paper Planes" was inspired by M.I.A.'s hassles trying to get a visa to enter America.
Staind's big moment came in 1999 when lead singer Aaron Lewis played "Outside" on Limp Bizkit's Family Values tour. The live, acoustic version earned lots of radio play.
The Hollies hit "The Air That I Breathe" was written in part as a reaction to the smog in Los Angeles.
"Friends In Low Places" by Garth Brooks was written by two Nashville songwriters after a meal in a local restaurant. One of them forgot his money, but said not to worry, "I have friends in low places. I know the cook."
How a country weeper and a blues number made "rolling stone" the most popular phrase in rock.
The '70s gave us Muppets, disco and Van Halen, all which show up in this groovy quiz.
The king of Christian worship music explains talks about writing songs for troubled times.
The top Contemporary Christian artist of all time on song inspirations and what she learned from Johnny Carson.
The longtime BS&T frontman tells the "Spinning Wheel" story, including the line he got from Joni Mitchell.
On Glen's résumé: hit songwriter, Facebook dominator, and member of Styx.