"Your Time Is Gonna Come" became the first Led Zeppelin song to be covered when Sandie Shaw recorded it in 1969.
Journey lead singer Steve Perry wrote the rather dramatic "Lovin', Touchin', Squeezin'" with the opening lyrics, "You make me weep, I wanna die," after seeing his girlfriend kissing another man.
Michael Jackson's "Human Nature" was written by the keyboard player from Toto, who was working on the Thriller album.
A 2011 Gold's Gym poll found "Stronger" by Kanye West the best song to work out to. Second place was the Rocky theme.
"What's Up" by 4 Non Blondes has endured as one of the most popular songs of the '90s, but it wasn't a huge hit at the time and the band split after one album. Frontwoman Linda Perry went on to write hits for Pink and Christina Aguilera.
Florida Georgia Line's "Cruise" spent 24 weeks on top of the Country chart - the most ever until Sam Hunt's "Body Like a Back Road" was #1 for 34 weeks. The record was previously held by Eddy Arnold's "I'll Hold You in My Heart (1947-48), Hank Snow's "I'm Moving On" (1950-51) and Webb Pierce's "In the Jailhouse Now" (1955), which each led for 21 weeks.
Franti tells the story behind his hit "Say Hey (I Love You)" and explains why yoga is an integral part of his lifestyle and his Soulshine tour.
Rufus Wainwright on "Hallelujah," his album Unfollow The Rules, and getting into his "lyric trance" on 12-hour walks.
Waters tells the "Gypsy Woman" story, shares some of her songwriting insights, and explains how Dennis Rodman ended up on one of her songs.
The lead singer on "Da Doo Ron Ron" and "Then He Kissed Me," La La explains how and why Phil Spector replaced The Crystals with Darlene Love on "He's A Rebel."
Kelly Keagy of Night Ranger tells the "Sister Christian" story and explains why he started sweating when he saw it in Boogie Nights.
Inspired by his dear friend, "Seasons in the Sun" paid for Terry's boat, which led him away from music and into a battle with Canadian paper mills.