(FILE - In this Sept. 1, 2009 file photo, singer Whitney Houston, right, sings with her daughter Bobbi Kristina Brown during a performance on 'Good Morning America' in Central Park in New York. Whitney Houston, who reigned as pop music's queen until her majestic voice and regal image were ravaged by drug use, has died, Saturday, Feb. 11, 2012. She was 48. (AP Photo/Evan Agostini, File))
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Daryl Hall, left, and John Oates perform at the New Orleans Jazz and Heritage Festival in New Orleans, Sunday, May 5, 2013. (AP Photo/Gerald Herbert)
A police officer evacuates a shoeless man holding a child as members of law enforcement conduct a search for a suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. Two suspects in the Boston Marathon bombing killed an MIT