Lil Wayne does an unlikely rap in a remix of the Joe Jonas song "Just In Love." The pair met at the 2008 MTV Video Music Awards.
Lucinda Williams' track "Compassion" is based on a poem by her father, lauded Arkansas poet Miller Williams.
Ellie Goulding's hit song "Lights" is about her fear of the dark, which forces the singer to sleep with the lights on.
The Australian band Jet took their name from the 1973 song of the same by Paul McCartney and Wings.
"Kokomo" gave The Beach Boys their first #1 hit in 22 years. They picked the title because it sounded tropical.
When "Last Friday Night (T.G.I.F.)" climbed to #1 on the Hot 100, Katy Perry became the first woman to send five songs from one album to the top of the charts. The four previous chart-toppers from her Teenage Dream set were "California Gurls," "Teenage Dream," "Firework" and "E.T."
When he was asked to write a song for the Singles soundtrack, Mark thought the Seattle grunge scene was already overblown, so that's what he wrote about.
We've heard of artists putting their hearts into their music, but some take it literally.
We ring the Hell's Bells to see what songs and rockers are sincere in their Satanism, and how much of it is an act.
Steppenwolf frontman John Kay talks about "Magic Carpet Ride," "Born To Be Wild," and what he values more than awards and accolades.
The Creed lead singer reveals the "ego and self-fulfillment" he now sees in one of the band's biggest hits.
Writing with Phil Lynott, Scott saw their ill-fated frontman move to a darker place in his life and lyrics.