Kelly Clarkson says someone would have to be dying in front of her before she ever sings "A Moment Like This" again.
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.
"Airplanes" by B.o.B was written by Lupe Fiasco, who recorded it but decided to pass.
Jack White titled "Seven Nation Army" after how he would mispronounce "Salvation Army" when he was little.
"Pink Cadillac" was a B-side for Bruce Springsteen in 1984, but after Aretha Franklin sang about pink Cadillacs on "Freeway Of Love" the following year, Natalie Cole covered the song and had a hit with it in 1988.
In "I Walk The Line," Johnny Cash hums before each verse. He did this to get his pitch, as the song changes key several times.
Dennis DeYoung explains why "Mr. Roboto" is the defining Styx song, and what the "gathering of angels" represents in "Come Sail Away."
Justin wrote the classic "Nights In White Satin," but his fondest musical memories are from a different decade.
Scaramouch, a hoople and a superhero soundtrack - see if you can spot the real Queen stories.
Graham Nash tells the stories behind some of his famous songs and photos, and is asked about "yacht rock" for the first time.
Gary Lewis and the Playboys had seven Top 10 hits despite competition from The Beatles. Gary talks about the hits, his famous father, and getting drafted.
