"Johnny B. Goode" was the only rock song included on the "Golden Records" that were sent into space aboard the Voyager 1 and Voyager 2 space probes in 1977. The identical records (one for each craft) contain folk songs from around the word, selections from Bach and Mozart, and greetings in 55 languages. 
Props to Aretha Franklin: her song "Respect" introduced the term "propers" as a sign of proper respect.

Shinedown lead singer Brent Smith had a band before Shinedown that was dropped by Atlantic Records, but the label offered him a development deal - that was his "Second Chance."

Kiss sing about "movin' fast on 95" in "Detroit Rock City," but I-95 doesn't go through Detroit (I-75 does) so they published the lyric as "Movin' fast, doin' 95."

In Led Zeppelin's "Fool In The Rain," the guy goes into a funk when he thinks he's been stood up, but is elated when he realizes he's been standing on the wrong corner, and it's all a terrible mess.

The riff for The Sex Pistols' "Pretty Vacant" was pinched from a very unpunk song, the ABBA ballad "S.O.S."

Beck's "Where It's At" is a nod to the early years of hip-hop when DJs would use two turntables to loop drum breaks, and a microphone to hype the crowd ("two turntables and a microphone...").
"25 or 6 to 4" to "Semi-Charmed Life" - see if you can spot the songs that are really about drugs.
It wasn't her biggest hit as a songwriter (that would be "Bette Davis Eyes"), but "Put a Little Love in Your Heart" had a family connection for Jackie.
dUg dIgs into his King's X metal classics and his many side projects, including the one with Jeff Ament of Pearl Jam.
Their frontman (Chris Cornell) started out as their drummer, so Soundgarden takes a linear approach when it comes to songwriting. Kim explains how they do it.
Don breaks down "Hotel California" and other songs he wrote as a member of the Eagles. Now we know where the "warm smell of colitas" came from.
Not everyone can be a superhero, but that hasn't stopped generations of musicians from trying to be Superman.