The video for Weezer's "Pork and Beans" features YouTube stars Chris Crocker, The Chocolate Rain Guy, The "Peanut Butter Jelly Time" Banana, and the Star Wars kid.
Imagine Dragons lead singer Dan Reynolds says their 2012 hit "Radioactive" is "a song about having an awakening; kind of waking up one day and deciding to do something new, and see life in a fresh way."
The Beastie Boys' "No Sleep Till Brooklyn" is a parody of heavy metal music. Kerry King of Slayer played guitar on the track - purposefully out of tune in parts.
"Jeopardy" by The Greg Kihn Band got the Weird Al treatment with "I Lost On Jeopardy." Kihn and Jeopardy game show announcer Art Fleming both appear in the video.
"Never Tear Us Apart" was a live favorite for INXS, who would often extend the second pause for a while as the crowd went crazy.
Stevie Nicks wrote "Landslide" before she joined Fleetwood Mac. She was considering going back to school when she and her boyfriend Lindsey Buckingham were asked to join the group.
Harry is Derek Smalls in Spinal Tap, Mark Shubb in The Folksmen, and Mr. Burns on The Simpsons.
Before he was the champ, Ali released an album called I Am The Greatest!, but his musical influence is best heard in the songs he inspired.
A drummer for one of the most successful metal bands of the last decade, Chris talks about what it's like writing and performing with Slipknot. Metal-neck is a factor.
Glen Ballard talks about co-writing and producing Alanis Morissette's Jagged Little Pill album, and his work with Dave Matthews, Aerosmith and Annie Lennox.
Kelly Keagy of Night Ranger tells the "Sister Christian" story and explains why he started sweating when he saw it in Boogie Nights.
The trail runs from flying saucer songs in the '50s, through Bowie, blink-182 and Katy Perry.