The 10 biggest "retirement tours" that didn't take.
One of the most popular classical vocalists in the land is lining up a trip to space, which is the inspiration for many of her songs.
A renowned guitarist and rock revivalist, Dave took "I Hear You Knocking" to the top of the UK charts and was the first to record Elvis Costello's "Girls Talk."
Soul music legend Bill Withers on how life experience and the company you keep leads to classic songs like "Lean On Me."
Does he have beef with Gaga? Is he Sean Lennon's godfather? See if you can tell fact from fiction in the Elton John edition.
Have you got the smarts to know which of these graduation song stories are real?