Brook Carter, 29, tends bar at Kamal's 21, an Atlanta strip club. She used to work as a stripper herself at Magic City. She says typically she'll have heard a new track playing on the radio at least a month earlier at the club. John Poole for NPR hide caption

In These Streets: Waka Flocka Flame on stage at WGCI-FM's  "Big Jam 2010" concert in Rosemont, Illinois on December 19, 2010. Raymond Boyd/Getty Images hide caption

An Iraqi man holds a sign reading "Baghdad will not be Kandahar" in Arabic as he takes part in a Dec. 3 protest in Baghdad organized by poets and intellectuals against the closure of nightclubs and a ban on alcohol sales. Ahmad Al-Rubaye/AFP/Getty Images hide caption

The production begins with 200 people in the stands, and then in come Mary and Joseph. Above, a shepherd stands with a llama. Courtesy of George Barnett hide caption

Members of the Vietnamese community listen in Kenner, La., as independent claims administrator Ken Feinberg and Louisiana Sen. Mary Landrieu conduct a town hall meeting for residents economically affected by the Deepwater Horizon oil spill. Gerald Herbert/AP hide caption

Solar panels like these in England turn energy from the sun into electricity. But researchers are looking to capture the sun's energy to make liquid fuels for cars and trucks, by combining carbon dioxide, water and the chemical element cerium. Matt Cardy/Getty Images hide caption

In Frankie & Alice, Rashad plays the mother of Halle Berry's character, who suffers from a multiple personality disorder. Sergei Bachlakov hide caption