A grassroots group is calling for a 24-hour “economic blackout,” and urging people not to shop at major retailers Friday as a form of protest against corporations, politicians and banks — and the social media-driven campaign has gained traction among several celebrities.

A 24-hour nationwide consumer spending freeze, orchestrated in response to corporate and political greed, will begin on Friday.

A grassroots movement's "economic blackout" calls on consumers nationwide to avoid shopping at major retailers Friday in protest of corporate greed. Why it matters: The 24-hour boycott, organized by The People's Union USA,