Singer John Legend has credited his model wife Chrissy Teigen with the idea of sending free food to protesters in New York last month (Dec15).

The pair teamed up with #OperationHelporHush in December (14) to send a food truck to a group of demonstrators who braved freezing temperatures in the Big Apple to voice their outrage over the U.S. cop killings that sparked outrage last year (14).

The pair sponsored the truck and paid for meals of macaroni and cheese to be dished out to protesters in Manhattan, and Legend admits he can't take full credit for the scheme as it was his wife who thought up the plan.

He tells America's GQ magazine, "That was Chrissy's idea. Originally, we were thinking about buying out a restaurant, but we realised we should bring the food to them."

Hundreds of Americans took to the streets last year (14) to protest after grand juries failed to indict police officers over the killing of two African-American men. Teenager Michael Brown was shot in Missouri and Eric Garner died after he was apparently placed in a chokehold as he was arrested in the Big Apple for illegally selling cigarettes.