"Take On Me" was just a minor hit in Norway until a new version was released with the iconic video, making it a global smash.
One of the most successful cover songs is Fugees' "Killing Me Softly," a 1996 reworking of Roberta Flack's 1973 hit. Originally, Fugees wanted to change the title to "Killing Him Softly" and make it about the dangers of drug abuse.
"Handle With Care" started as a George Harrison song with guest appearances by Roy Orbison, Bob Dylan, Tom Petty and Jeff Lynne, but it went so well the five of them decided to form a group - The Traveling Wilburys - and record an entire album.
"Peg" by Steely Dan is told from the perspective of Peg's jilted ex-boyfriend as he watches her launch an acting career.
When Adele needed to cry during the filming of the video for "Hello" she played Labrinth's 2014 single "Jealous." "You could play it at my kid's birthday and I'd burst into tears," she said.
Jean-Claude Van Damme was an extra in the video for Ollie & Jerry's "Breakin'... There's No Stopping Us." He can be seen at point dancing in the background.
The drummer for Anthrax is also a key songwriter. He explains how the group puts their songs together and tells the stories behind some of their classics.
Some album art was at least "inspired" by others. A look at some very similar covers.
Lita talks about how they wrote songs in The Runaways, and how she feels about her biggest hit being written by somebody else.
Charlotte was established in the LA punk scene when a freaky girl named Belinda approached her wearing a garbage bag.
In this quiz, spot the artist who put Romeo into a song lyric.
Tyler talks about his true love: songwriting. How he identifies the beauty in a melody and turns sorrow into art.