"Kokomo" gave The Beach Boys their first #1 hit in 22 years. They picked the title because it sounded tropical.

The Lady Gaga/Beyoncé collaboration "Telephone" isn't just about turning down an unwanted caller, it's an analog for how Gaga was feeling overwhelmed, like a phone was always ringing in her head.

Sia Furler wrote "Titanium" and wanted to give the tune to Katy Perry. She turned it down, so David Guetta recorded it instead using Sia's original demo guide vocal. It became a big hit, especially in the UK, where it went to #1.

16-tear-old Lorde wrote the lyrics to "Royals" at home in just half an hour. She was inspired by the "ridiculous, unrelatable, unattainable opulence" that runs through such albums as Kanye West and Jay-Z's Watch the Throne and Lana Del Rey's Born To Die.

Mary J. Blige introduced three new words with her hit "Family Affair": hateration, holleration and dancerie.

Elvis Presley recorded "Always On My Mind" in 1972, but Willie Nelson's version 10 years later was the hit and won the Song of the Year Grammy.
Rick Astley on "Never Gonna Give You Up," "Cry For Help," and his remarkable resurgence that gave him another #1 UK album.
When singers started spoofing their own songs on Sesame Street, the results were both educational and hilarious - here are the best of them.
Is Owl City on a quest for another hit like "Fireflies?" Adam answers that question and explains the influences behind many others.
Johnny Depp, Angelina Jolie, Mila Kunis and John Malkovich are just a few of the film stars who have moonlighted in music videos.