According to Essence magazine, the GRAMMY Award winning gospel dou Mary Mary will Join Stevie Wonder in his Florida concert boycott following the acquittal of former neighborhood watchman George Zimmerman. "We will stand with Stevie Wonder & boycott Florida until the Stand Your Ground Law is changed," the pair reportedly told their Twitter followers. The pair explained "We love our fans but we MUST do something. We understand that a No from us isn't as big as a 'No' from Stevie Wonder, but if all our voices join together we can REALLY change things." Before the announcement, Mary Mary singer...