"Just Dance" was Lady Gaga's first hit, and it also brought the techno-synth sound that had been popular in Europe for the previous decade to the United States.
Richard Harris, who played Professor Dumbledore in the first two Harry Potter movies, had a hit in 1968 with "MacArthur Park."
Katy Perry co-wrote Iggy Azalea's hit single "Black Widow." Perry was originally going to sing on the track, but she couldn't fit it into her schedule, so Rita Ora provided the sung vocals instead.
"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.
The line "satellite of love" in the Def Leppard song "Rocket" came from the title of a 1972 Lou Reed song.
Hanson's megahit "MMMbop," released when they were teenagers, is surprisingly profound. Zac Hanson told Songfacts it "represents a frame of time or the futility of life."
Taylor talks about "The Machine" - the hits, the videos and Clive Davis.
The top Contemporary Christian artist of all time on song inspirations and what she learned from Johnny Carson.
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.
How well do you know this shock-rock harbinger who's been publicly executed hundreds of times?
Roger reveals the songwriting formula Clive Davis told him, and if "Eight Miles High" is really about drugs.
Martyn talks about producing Tina Turner, some Heaven 17 hits, and his work with the British Electric Foundation.