Taylor Swift became the first woman in the history of the Hot 100 to succeed herself at #1 when "Blank Space" dethroned her previous single, "Shake It Off," from the top spot in 2014.
"A Hard Day's Night" was the title song to The Beatles' first movie, which was surprisingly good: it was nominated for two Oscars.
The first popular song to use the phrase "Heavy Metal" was "Born To Be Wild" by Steppenwolf, which was featured in the movie Easy Rider.
Adele's "Someone Like You" is the first song with just piano and voice to hit #1 in the history of the Billboard Hot 100, which started in 1958.
"Man On The Moon" by R.E.M. is about the comedian Andy Kaufman, who often seemed like he was from another planet.
Paul McCartney wrote "Blackbird" in Scotland after reading about race riots in the US, triggered when federal courts forced the racial desegregation of the Arkansas capital's school system.
Do their first three albums have French titles? Is "De Do Do Do, De Da Da Da" really meaningless? See if you can tell in this Fact or Fiction.
Rick has a surprising dark side, a strong feminine side and, in a certain TV show, a naked backside. But he still hasn't found Jessie's Girl.
The Sevendust frontman talks about the group's songwriting process, and how trips to the Murder Bar helped forge their latest album.
Dean's saga began with "Ariel," a song about falling in love with a Jewish girl from New Jersey.
You may not recognize his name, but you will certainly recognize Peter Lord's songs. He wrote the bevy of hits from Paula Abdul's second album, Spellbound.
Webb talks about his classic songs "By the Time I Get to Phoenix," "Wichita Lineman" and "MacArthur Park."