Seacrest, Wonder, Usher, others praise Dick Clark

Dick Clark, who died earlier this year, was the subject of a special tribute at the American Music Awards, which he created 40 years ago.

Stevie Wonder and the Rickey Minor Band perform "Master Blaster," "My Cherie Amour" and "Sir Duke" during a tribute to Dick Clark at the 40th Anniversary American Music Awards in Los Angeles on Nov. 18, 2012. (John Shearer/Invision/Associated Press)

Stevie Wonder and the Rickey Minor Band perform "Master Blaster," "My Cherie Amour" and "Sir Duke" during a tribute to Dick Clark at the 40th Anniversary American Music Awards in Los Angeles on Nov. 18, 2012. (John Shearer/Invision/Associated Press)

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