
"The Battle of Evermore" is the only song Zeppelin ever recorded with a guest vocalist. It features Sandy Denny from Fairport Convention duetting with Robert Plant.
"The Rubberband Man" is a "short, fat guy" with rhythm and grace. Spinners producer Thom Bell wrote it to boost the self-esteem of his rotund son.

"Do The Bartman," released at the peak of Simpsons-mania, has uncredited backup vocals by Michael Jackson, who later appeared on the show.

The most famous song to prominently feature a French horn is "God Only Knows" by The Beach Boys.

Featured in the 1978 musical Evita, "Don't Cry For Me Argentina" became the biggest selling UK hit by a female vocalist (Julie Covington).
Dan cracked the Top 40 with "Ritual," then went to India and spent 2 hours with the Dalai Lama.
Meshell Ndegeocello talks about recording "Wild Night" with John Mellencamp, and explains why she shied away from the spotlight.
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.
Dennis DeYoung explains why "Mr. Roboto" is the defining Styx song, and what the "gathering of angels" represents in "Come Sail Away."
Kooper produced Lynyrd Skynyrd, played with Dylan and the Stones, and formed BS&T.
The revered singer-songwriter talks inspiration and explains why she put a mahout in "Drop the Pilot."