Katy Perry co-wrote Iggy Azalea's hit single "Black Widow." Perry was originally going to sing on the track, but she couldn't fit it into her schedule, so Rita Ora provided the sung vocals instead.
Donna Summer's "Bad Girls" is about prostitutes, but it was still used in the movie Rugrats In Paris.
The song used in introductions by the Chicago Bulls and many other sports teams is "Sirius" by The Alan Parsons project, the opening track on the Eye In The Sky album.
"Sister Christian" was written by Night Ranger drummer Kelly Keagy, who was imploring his younger sister to be careful in her reckless youth, especially when "motoring" (driving around) with friends.
The Annie Lennox hit "No More I Love You's" is a cover, originally sung by a man.
Sir Mix-A-Lot is credited as a writer on The Pussycat Dolls' biggest hit, "Don't Cha," because it interpolates his 1988 song "Swass," where he goes, "Don't you wish your boyfriend was swass like me?"
Richie talks about the impact of "Amazed," and how his 4-year-old son inspired another Lonestar hit.
The lead singer/lyricist for Anberlin breaks down "Impossible" and covers some tracks from their 2012 album Vital.
Scott was Stevie Wonder's bass player before becoming a top session player. Hits he played on include "I Will Survive," "Being With You" and "Sara Smile."
A talk with Martin Popoff about his latest book on Rush and how he assessed the thousands of albums he reviewed.
One of the most successful songwriters in the business, Desmond co-wrote "Livin' La Vida Loca," "Dude (Looks Like A Lady)" and "Livin' On A Prayer."
Nirvana, Billy Joel and Bruce Springsteen are among those who wrote songs with cities that show up in this quiz.