The Frozen song "Let It Go" was recorded in 42 different languages for the movie's foreign releases. This earned it an entry in the 2016 Guinness World Records publication for "Most Languages Featured on a Single."
"The Night Chicago Died" was written and recorded by the British group Paper Lace. They talk about Al Capone in the song, but got a lot of details wrong - understandable since they wrote it based on gangster movies.
It really was so easy for Linda Ronstadt to score a hit with her Buddy Holly cover of "It's So Easy." She would sometimes change the lyric to: "It's so easy to have a hit, all you have to do is recycle it."