When "Nothin' On You" reached #1 on the Hot 100, B.o.B became the first American act whose name is a palindrome to top the chart. The other two who did so prior to the Atlanta rapper were both Scandinavian groups - ABBA and A-Ha.
Bruce Springsteen's "Streets Of Philadelphia" won the Oscar for Best Original Song in 1994, beating out Neil Young's "Philadelphia," which was also written for the movie Philadelphia.
The "Ms. Jackson" in the OutKast song is Erykah Badu's mother. Andre 3000 had a child with Badu, and felt she was portraying him as a lousy dad.
Weird Al Yankovic proposed a parody of "Black Or White" called "Snack All Night," but Michael Jackson asked him not to.
Meghan Trainor wrote "Lips Are Movin" in just eight minutes with her writing partner Kevin Kadish.
"Livin' La Vida Loca" is a Latin pop landmark, but "la vida loca" are the only Spanish words in the lyric - "mocha" is English.
Test your metal - Priest, Maiden, and Beavis and Butt-head show up in this one.
Justin wrote the classic "Nights In White Satin," but his fondest musical memories are from a different decade.
Kooper produced Lynyrd Skynyrd, played with Dylan and the Stones, and formed BS&T.
Lita talks about how they wrote songs in The Runaways, and how she feels about her biggest hit being written by somebody else.
Katy Perry mentions McDonald's, Beyoncé calls out Red Lobster, and Supertramp shouts out Taco Bell - we found the 10 restaurants most often mentioned in songs.
Dave reveals the inspiration for "Feelin' Alright" and explains how the first song he ever wrote became the biggest hit for his band Traffic.