Simon Rex from the TV show What I Like About You and Wilmer Valderrama from That 70s Show both appear in the LMFAO video for "Sexy and I Know It."
Bob Marley gave the songwriting credit for "No Woman No Cry" to his friend Vincent Ford, who ran a soup kitchen in Trenchtown, the area of Kingston where Marley grew up.
"Diamonds From Sierra Leone" by Kanye West is about the "blood diamonds" mined using child labor in Africa. It also serves as a shout-out to Roc-A-Fella records, known for a diamond-shaped hand signal.
Icona Pop consider "I Love It" a kiss-off to their boyfriends. "We just wanted to get the song out and get the pigs to hear it," group member Jawo said.
Harry Chapin's wife Sandy wrote the lyrics to "Cat's In The Cradle," which were actually about her first husband.
YouTube had to upgrade after PSY's "Gangnam Style" broke their hit counter in 2012. Once the video reached 2,147,483,647 views, the maximum positive value for a 32-bit signed binary integer in computing, the view-counter could no longer work.
From "Some Day My Prince Will Come" to "Let It Go" - how Disney princess songs (and the women who sing them) have evolved.
Oliver Leiber talks about writing and producing hits for Paula Abdul, and explains his complicated relationship with his father, the songwriter Jerry Leiber.
Jim talks about the impact of "The Middle" and uses a tree metaphor to describe his songwriting philosophy.
Just like Darrin was replaced on Bewitched, groups have swapped out original members, hoping we wouldn't notice.
Dwarfs on stage with an oversize Stonehenge set? Dabbling in Satanism? Find out which Spinal Tap-moments were true for Black Sabbath.
Graham Nash tells the stories behind some of his famous songs and photos, and is asked about "yacht rock" for the first time.