"Always On My Mind" was first recorded by Brenda Lee in 1971, then by Elvis in 1972. Willie Nelson's 1982 version was the big hit and won the Song of the Year Grammy.
Ed Sheeran's "Bloodstream" was written after an experience taking MDMA during a wedding celebration in Ibiza, and it's basically about all the feelings that he got from that time.
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."
James Brown's "Get Up (I Feel Like Being a) Sex Machine" was the first Hot 100 hit with the word "sex" in the title.
An unknown Ke$ha sang on Flo-Rida's #1 hit "Right Round," but refused to appear in the video because she wanted to make a name for herself.
Lady Gaga says that "Poker Face" is about her personal experience with bisexuality; being with a man but thinking about a woman.
Michael tells the story of "Send Me On My Way," and explains why some of the words in the song don't have a literal meaning.
Long before she was judging contestants on American Idol, Oliver was producing Paula Abdul. Here's how he helped turn this unknown choreographer into a star.
"London Bridge," "Ring Around the Rosie" and "It's Raining, It's Pouring" are just a few examples of shockingly morbid children's songs.
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.
She thinks of herself as a "song interpreter," but back in the '80s another country star convinced Emmylou to take a crack at songwriting.
"I'll Be" was what Edwin called his "Hail Mary" song. He says it proves "intention of the songwriter is 180 degrees from potential interpretation by an audience."
