The US rock band shunned an invitation to perform on the Medals Plaza because of the country’s strict laws against "gay propaganda for minors".
In a statement sent to The Huffington Post, Harry said: "Blondie has always been a part of the downtown community in New York City, with many, many friends who represent alternative lifestyles.
"We feel very strongly about these friendships and associations, and don’t feel good about participating in a situation where biases and prejudices are paramount."
Blondie shared a scan of the official invitation on social media, with "Pass. Human Rights" scrawled across it in black ink. Over 4,000 have 'liked' the picture on the band's Facebook page.
Blondie performed at Amnesty International's recent 'Bringing Human Rights Home' concert in New York – an event which saw two members of Pussy Riot take to the stage with self-professed "freedom fighter" Madonna to demand a "Russia that is free and a Russia without Putin".
Sir Elton John defied calls to cancel his recent Moscow concert, instead using his visit to speak out against the laws, which he said legitimised homophobia and provided legal cover to extremists.
Described by Vladimir Putin recently as an "extraordinary person regardless of his orientation", Sir Elton rejected the President's attempted olive branch.
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Seventies punk group Blondie, whose hits include "Heart of Glass", "Call Me" and "Atomic", are to be honoured by NME when they receive the music magazine's Godlike Genius award later this month. "It's great you know," Harry said. "It's out of proportion, but it's nice to be recognised."
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