Springsteen dedicates song to 'justice for Trayvon Martin'

“Well, is it a gun, is it a knife / Is it a wallet, this is your life / It ain’t no secret (it ain’t no secret) / No secret my friend / You can get killed just for living in your American skin," Springsteen sings.

Other recording artists have also weighed in on the case, which has dominated headlines in recent days. Stevie Wonder said at a concert in Quebec City, Canada, on Sunday that he would not perform in any state with a "stand your ground" law.

"I decided today that until the 'stand your ground' law is abolished in Florida, I will never perform there again," he said. "As a matter of fact, wherever I find that law exists, I will not perform in that state or in that part of the world."

"For those that we have lost in the battle for justice, wherever that fits in any part of the world — we can't bring them back," he continued. "[What] we can do is we can let our voices be heard. And we can vote in our various countries throughout the world for change and equality for everybody. That's what I know we can do."

Singer Katy Perry tweeted that her "tummy turns" after the verdict, and Nicki Minaj called the verdict an "injustice." Sean "Diddy" Combs called Martin's death a "tragedy."