
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.
"I Just Called To Say I Love You" is Stevie Wonder's best-selling single worldwide. It topped the Hot 100, AC, R&B and UK charts all in the same week.

Michael Stipe hadn't finished the lyrics when R.E.M. recorded "Radio Free Europe." He calls the vocal "complete babbling."

The kid in Madonna's "Open Your Heart" video became a successful songwriter. His songs include Amy Winehouse's "You Sent Me Flying" and James Blunt's "1973."

Cheap Trick's original version of "I Want You To Want Me" was countrified and kind of hokey. When they sped it up for their Live At Budokan album, it became a huge hit.
Newman makes it look easy these days, but in this 1974 interview, he reveals the paranoia and pressures that made him yearn for his old 9-5 job.
The outlaw country icon talks about the spiritual element of his songwriting and his Bob Dylan mention.
One of the most successful songwriters in the business, Desmond co-wrote "Livin' La Vida Loca," "Dude (Looks Like A Lady)" and "Livin' On A Prayer."
The man who ran Nirvana's first label gets beyond the sensationalism (drugs, Courtney) to discuss their musical and cultural triumphs in the years before Nevermind.
One of the most dynamic bass player/songwriters of his time, Chris is the only member of Yes who has been with the band since they formed in 1968.
Chris and his wife Tina were the rhythm section for Talking Heads when they formed The Tom Tom Club. "Genius of Love" was their blockbuster, but David Byrne only mentioned it once.