"Cruise" climbed from 6-5 on the Hot 100 in its 34th week. In doing so it set a record for the slowest ascent to the Top 5 in the chart's history, which was beaten by Imagine Dragon's "Radioactive" 42-week clamber to #4 three weeks later.
Meghan Trainor wrote "Lips Are Movin" in just eight minutes with her writing partner Kevin Kadish.
Steve Perry wrote "Lovin', Touchin', Squeezin'" with the opening lyrics, "You make me weep, I wanna die," after seeing his girlfriend kissing another man.
"Come Dancing" by The Kinks was inspired by the older sister of Ray Davies, who would make guys take her out dancing and spend their money on her, only to send them home frustrated with just a peck on the cheek.
Johnny Cash's wife, June Carter, wrote "Ring Of Fire" about their relationship.
Will.I.am, literally dreamt up "I Gotta Feelin'." Said the Black Eyed Pea: "Have you ever had a dream where there's a melody in your dream? I'll wake up out of my sleep and record that! 'I Gotta Feelin' was one of those songs."
Before "Rap" was a form of music, it was something guys did to pick up girls in nightclubs. Donnie talks about "The Rapper" and reveals the identity of Leah.
Richard explains how Joe Walsh kickstarted his career, and why he chose Hazard, Nebraska for a hit.
A top New York studio musician, Ralph played guitar on many '60s hits, including "Lightnin' Strikes," "A Lover's Concerto" and "I Am A Rock."
Brian has unearthed outtakes by Fleetwood Mac, Aretha Franklin, Elvis Costello and hundreds of other artists for reissues. Here's how he does it.
Tim and his brother Richard are the Furs' foundation; Tim explains how they write and tells the story of "Pretty In Pink."
Cain talks about the divine inspirations for "Don't Stop Believin'" and "Faithfully."