According to a list that surfaced on music blog American Urban Radio Networks, the 63-year-old singer enlisted several star performers, including Kanye West and the Rolling Stones, to join him in his refusal to play in Florida until the state rectifies its Stand Your Ground Law.
Huffington Post and the Wrap, claimed Rod Stewart, Usher and Rihanna were also boycotting the state.
"I don't know where this list came from," one rep said.
Wonder made headlines last week when he announced at his concert in Quebec City, "I decided today that until the Stand Your Ground law is abolished in Florida, I will never perform there again."
"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," he added.
Zimmerman's acquittal last week in the shooting death of Trayvon Martin sparked outrage across the country, and Wonder was one of the few entertainers to take a stand.
The American Urban Radio Networks site, which cited individuals close to Wonder's camp in its story, could not be reached for comment.