"Girl Crush" by Little Big Town came from the hashtag #girlcrush, which its co-writer, Lori McKenna, spotted on Instagram.
War got the idea for "Why Can't We Be Friends?" when they were traveling in Japan and found they had a kinship with the citizens even though they didn't speak the same language.
Brian May wrote Queen's "We Will Rock You" so the crowds could participate in the song. They didn't have instruments, but they could clap their hands and stomp their feet.
"Oh Well," from their 1960s Peter Green era, is the only Fleetwood Mac song played in concert in every decade they've been extant.
Avicii's "Wake Me Up" was the first ever song to reach 200 million streams on the Spotify music streaming service.
Neil Young wrote the CSN&Y song "Ohio" about the Kent State Shootings, when the National Guard opened fire on students at Kent State University in Ohio, killing four.
The Celtic music maker Loreena McKennitt on finding musical inspiration, the "New Age" label, and working on the movie Tinker Bell.
Graham Nash tells the stories behind some of his famous songs and photos, and is asked about "yacht rock" for the first time.
The king of Christian worship music explains talks about writing songs for troubled times.
Elvis, Little Richard and Cheryl Cole have all sung about Teddy Bears, but there is also a terrifying Teddy song from 1932 and a touching trucker Teddy tune from 1976.
The guitarist/songwriter explains how he came up with his signature sound, and deconstructs some classic Fear Factory songs.
The man who ran Nirvana's first label gets beyond the sensationalism (drugs, Courtney) to discuss their musical and cultural triumphs in the years before Nevermind.
