Lady Gaga says that "Poker Face" is about her personal experience with bisexuality; being with a man but thinking about a woman.
It wasn't a hit when the group was active, but "Here Comes The Sun" has risen to become one of the most popular Beatles songs. This became apparent in the download era when it was the group's top-selling song the first week their catalog was available on iTunes.
"In-A-Gadda-Da-Vida" was supposed to be titled "In The Garden Of Eden," but someone in the studio wrote down the title phonetically, and it stuck.
Michael Jackson's "Human Nature" was written by the keyboard player from Toto, who was working on the Thriller album.
"Human" by The Killers was the most streamed song on Spotify in 2008, the year that the music streaming service was launched.
"Airplanes" by B.o.B was written by Lupe Fiasco, who recorded it but decided to pass.
Graham Nash tells the stories behind some of his famous songs and photos, and is asked about "yacht rock" for the first time.
Phil was a songwriter, producer and voice behind many Philadelphia soul classics. When disco hit, he got an interesting project: The Village People.
A band so baffling, even their names were contrived. Check your score in the Ramones version of Fact or Fiction.
JJ talks about The Stranglers' signature sound - keyboard and bass - which isn't your typical strain of punk rock.
Chad tells tales from his time as drummer for Nirvana, and talks about his group Before Cars.
Collaborating with T Bone Burnett, Leslie Phillips changed her name and left her Christian label behind - Robert Plant, who recorded one of her songs on Raising Sand, is a fan.