
After 47 visits to the Hot 100, Justin Bieber topped the tally for the first time on September 17, 2015 with "What Do You Mean?"

Pink wrote "Just Give Me A Reason" about how one partner can feel jilted over something trivial, like how her boyfriend passes her the butter.

"Sloop John B" is a traditional West Indian folk song, and it was a huge hit for The Beach Boys in 1966. They tweaked the lyric, "This is the worst trip since I've been born" to "...I've ever been on" as a wink to acid culture.

"The Long and Winding Road" was the last of The Beatles' 20 #1 hits in America. Written by Paul McCartney, he said it's a sad song about "the door you never quite reach."

"Instant Karma" is one of John Lennon's most hopeful songs, written and recorded in one day at a time when he felt people were pulling together in a positive direction.

"What A Wonderful World," released in 1967 four years before Louis Armstrong died, didn't find an audience in America until 1988 when it was used in the movie Good Morning, Vietnam.
Shears does very little promotion, which has kept him secluded from the spotlight. What changed when Cyndi Lauper had a hit with his song? Not much, really.
Franti tells the story behind his hit "Say Hey (I Love You)" and explains why yoga is an integral part of his lifestyle and his Soulshine tour.
Was Janet secretly married at 18? Did she gain 60 pounds for a movie role that went to Mariah Carey? See what you know about Ms. Jackson.
Our chat with Barney Hoskyns, who covers the wild years of Woodstock - the town, not the festival - in his book Small Town Talk.
An Electronic music pioneer with Asperger's Syndrome. This could be interesting.