"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.
The song "Without You," a hit for Nilsson in 1972 and Mariah Carey in 1994, was written and originally recorded by Badfinger in 1970.
Judas Priest's "Evening Star" is a Christmas carol that describes the journey of the Magi from a first person perspective.
"Amarillo By Morning" got its title from a Fed Ex commercial that promised to deliver packages the next day to places like Amarillo. It's George Strait's most famous song, but was written and originally released by Terry Stafford nine years earlier.
Kesha (known at the time as Ke$ha) was still pretty wild when she released her song "Crazy Kids" in 2012. It's about one of her birthday parties that got a little out of hand.
Walk The Moon vocalist Nicholas Petricca got the idea for "Shut Up and Dance" when he and his girlfriend were taking forever to get drinks at a Los Angeles club bar. Petricca was getting frustrated, so his girlfriend told him to, "Shut up and dance with me!'"
The Scorpions and UFO guitarist is also a very prolific songwriter - he explains how he writes with his various groups, and why he was so keen to get out of Germany and into England.
How a gym teacher, a janitor, and a junkie became part of some very famous band names.
Lyrics don't always follow the rules of grammar. Can you spot the ones that don't?
Smith breaks down some of his worship tracks as well as his mainstream hits, including "I Will Be Here For You" and "A Place In This World."
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.
The "Lowdown" and "Lido Shuffle" singer makes a habit of playing with the best in the business.