Jessie J had a lyric from her song "Who You Are" tattooed on her hip, but she spelled "lose" incorrectly so it reads: "Don't loose who you are in the blur of the stars."
If you have a whole day to kill, you can check out the full version of Pharrell Williams' "Happy" music video, the world's first 24-hour music video.
When "Baby Love" reached the top spot, The Supremes became the first Motown act with two #1 hits on the Hot 100.
Hozier's "Take Me to Church" drew inspiration from the atheist writer Christopher Hitchens. He called it "a bit of a losing your religion song."
An unknown Kesha (known then as 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.
Thirty years after Jimi Hendrix played "Fire" at Woodstock, Red Hot Chili Peppers played it at Woodstock '99, but this time the unruly crowd actually set fires and looted.
Songs where something goes horribly wrong (literally or metaphorically), and help is needed right away.
Lita talks about how they wrote songs in The Runaways, and how she feels about her biggest hit being written by somebody else.
Todd Rundgren explains why he avoids "Hello It's Me," and what it was like producing Meat Loaf's Bat Out of Hell album.
Do you know who wrote Patti Smith's biggest hit? How about the Grease theme song? See if you can match the song to the writer.
Elvis, Little Richard and Cheryl Cole have all sung about Teddy Bears, but there is also a terrifying Teddy song from 1932 and a touching trucker Teddy tune from 1976.
Despite her reticent personality, Adele's life and music are filled with intrigue. See if you can spot the true tales.