A jukebox disc - can you guess the diameter? Stephen St. John/National Geographic hide caption
Music Features
Thursday
Wednesday
The Marine Band performs on the Fourth of July in front of the White House. Mandel Ngan/AFP/Getty Images hide caption
Tuesday
Marina Diamandis of Marina and The Diamonds performs live at the Reading Festival on August 27, 2010 in Reading, England. Simone Joyner/Getty Images hide caption
Monday
Pretty soon everyone might be able to store and access the music they own from anywhere, using any device. Harold Cook/Getty Images hide caption
Bret Michaels on the cover of Billboard's Maximum Exposure issue, which he landed because he was on a highly-rated reality show, not because of his participation in the creation or execution of any particular piece of music. Still, he's famous and rich. Which is the point of this list, just so we're clear. Billboard Magazine hide caption
Friday
Sleater-Kinney was a great band. From left: Corin Tucker, Janet Weiss and Carrie Brownstein Sub Pop hide caption
So Much Style: Pavement's Stephen Malkmus performs at the Central Park SummerStage on September 21, 2010 in New York City. Cory Schwartz/Getty Images hide caption
Thursday
Athletes may spend all their free time training or at the gym; musicians spend theirs rehearsing and training in practice rooms like this one. Yay, it's Rob!/flickr hide caption