A Philadelphia Court Judge on Tuesday acquitted a 20-year-old Rittenhouse Square singer from all charges after a police officer arrested him for singing too loudly in the park.

"A Change Is Gonna Come" singer Anthony Riley was jailed for refusing to succumb to a police officer's demand that he stop singing too loudly and faced a three-month sentence for the March 27 incident.

Municipal Court Judge Karen Simmons found Riley not guilty of disorderly conduct, saying: "This is America, not Afghanistan."

The incident has also caused the city to review the kind of music that can be performed throughout Fairmount Park in future.

Greg Wilkinson, who arrested Riley, said that his loud singing was interrupting the voice from his police radio. AP reports that when Riley asked whether he was still in America, the officer replied: "This is Afghanistan."