The band members wore uniforms and did some synchronized moves. Their songs had snappy little hooks and robotic drumbeats. They even started their set with an introductory video. But Devo was hardly a boy band when it played on Friday night at Central Park SummerStage, in its first public New York concert since the 1980's. Just in time for the current new-wave revival, Devo, which got started in Ohio in 1972 and released its first album in 1978, returned to prove that its songs still have some bite. Paradoxes have always collected around Devo. It started as an art project,...