J-pop row

J-pop row: Sony apologises for Keyakizaka46's 'Nazi' outfits

Keyakizaka46 went on stage in Yokohama on 22 October wearing black capes and caps resembling those of SS officers

Social media users were quick to point out similarities with the uniforms of Hitler's brutal paramilitary force.

Sony Music Entertainment (Japan) said inĀ a statement: "We express our heartfelt apology for causing offence."