Pink wrote "Just Give Me A Reason" about how one partner can feel jilted over something trivial, like how her boyfriend passes her the butter.
Chuck Berry's only #1 hit was "My Ding-a-Ling," a novelty song about a boy and his... you know.
Meghan Trainor wrote "Lips Are Movin" in just eight minutes with her writing partner Kevin Kadish.
The Hollies hit "The Air That I Breathe" was written in part as a reaction to the smog in Los Angeles.
YouTube were forced into an upgrade after PSY's "Gangnam Style" broke the video-sharing website's hit counter. Once the tune reached 2,147,483,647 views, the maximum positive value for a 32-bit signed binary integer in computing, the view-counter could no longer work.
Richard explains how Joe Walsh kickstarted his career, and why he chose Hazard, Nebraska for a hit.
On Glen's résumé: hit songwriter, Facebook dominator, and member of Styx.
Was a Beatles song a TV theme? And who came up with those Fresh Prince and Sopranos songs?
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.
"Come On Eileen" was a colossal '80s hit, but the band - far more appreciated in their native UK than stateside - released just three albums before their split. Now, Dexys is back.
A selection of songs made to be terrible - some clearly achieved that goal.