Jay-Z's 2012 "Glory" features his daughter Blue Ivy Carter's cries and coos. At less than two days old, she became the youngest ever credited artist to feature on a Billboard chart when the song debuted on R&B/Hip-Hop Songs at #74.

Michael Jackson's "Human Nature" was written by the keyboard player from Toto, who was working on the Thriller album.
The actor Dan Aykroyd sang on "We Are The World." LaToya Jackson did too, so we know they weren't all that picky.

If what you get equals what you give away, you might as well give it all away. That's the concept behind "Give It Away" by Red Hot Chili Peppers.
The songwriting team Leiber and Stoller wrote "Hound Dog" for a blues singer named Big Mama Thronton, who first recorded the song in 1953. Elvis covered it in 1956, and it became his biggest hit.

The setting for the Queensrÿche song "Jet City Woman" is Seattle, the "jet city."
A founding member of the band War, Harold gives a first-person account of one of the most important periods in music history.
The powerhouse producer behind Janet Jackson's hits talks about his Boyz II Men ballads and regrouping The Time.
Nick made some of the biggest videos on MTV, including "The Final Countdown," "Heaven" and "Don't Know What You Got (Till It's Gone)."
The Def Leppard frontman talks about their "lamentable" hit he never thought of as a single, and why he's juiced by his Mott The Hoople cover band.
Did Marvin try out with the Detroit Lions? Did he fake crazy to get out of military service? And what about the cross-dressing?
Despite her reticent personality, Adele's life and music are filled with intrigue. See if you can spot the true tales.