Madonna, Usher, Pattie Labelle, Kanye West, Jay Z, the Rolling Stones, Justin Timberlake, R. Kelly, Rihanna, Alicia Keys, Will I AM, Erykah Badu and Rod Stewart are among 20 musical acts said to be joining Stevie Wonder's boycott of the state of Florida

April Ryan of AprilDRyan.com reported the list of artists supporting a change to the Stand Stand Your Ground Law, in the wake of the George Zimmerman verdict. Ryan cited individuals close to Wonder's camp.

Some of the artists listed have already canceled concerts in the Sunshine State after recent events.

See video: Stevie Wonder Won't Perform in Florida Until 'Stand Your Ground Law Is Abolished'.

"I decided today that until the Stand Your Ground law is abolished in Florida, I will never perform there again," Wonder announced at a concert earlier this month. "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."

Roughly 30 states have some version of the controversial law.

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