Punctuation makes all the difference. When "Stop. Hammer Time" becomes "Stop Hammer Time," it's a great slogan for those little strips that stick to your wall for hanging small objects. Hammer, a prolific pitchman who has also sold Starburst and Nationwide Insurance, appeared in TV spots for the product, where we learn that "Hammer hates nails."

Fleetwood Mac were going through various internecine romantic tribulations while recording their Rumours album. The song "Dreams" was written by Stevie Nicks with the line "Players only love you when they're playing" directed at their guitarist, Lindsey Buckingham.

When Petula Clark reached #1 in the US with "Downtown" in 1965, she became the first female singer from England to hit #1 in the US during the Rock Era (after 1955).

"What's Up" by 4 Non Blondes has endured as one of the most popular songs of the '90s, but it wasn't a huge hit at the time and the band split after one album. Frontwoman Linda Perry went on to write hits for Pink and Christina Aguilera.

Train's guitarist had to Google an instructional video to learn how to play the ukulele for "Hey Soul Sister."

The bedrock of David Guetta's Nicki Minaj-featuring single "Hey Mama" is a sample of "Rosie," a 1940s prison recording from folk archivist Alan Lomax that songwriter Esther Dean first showed the French DJ on YouTube.

The "Mum-mum-mum-ma" hook on lady Gaga's "Poker Face" was sampled from Boney M's 1977 hit "Ma Baker."
Songs that seem to glorify violence against women are often misinterpreted - but not always.
Into the vaults for Bruce Pollock's 1984 conversation with the esteemed bluesman. Hooker talks about transforming a Tony Bennett classic and why you don't have to be sad and lonely to write the blues.
Was Justin the first to be Punk'd by Ashton Kutcher? Did Britney really blame him for her meltdown? Did his bandmates think he was gay?
The man who brought us "Red Skies" and "Saved By Zero" is now an organic farmer in France.
Armed with a childhood spent devouring books, Mike Scott's heart was stolen by the punk rock scene of 1977. Not surprisingly, he would go on to become the most literate of rockers.
Ozzy biting a dove? Alice Cooper causing mayhem with a chicken? Creed so bad they were sued? See if you can spot the real concert mishaps.