City Hall sounded a bit more sweet Tuesday morning thanks to some international visitors. French boys choir Les Petits Chanteurs De Lyon, which means Little Singers of Lyon, sang in the center atrium and later toured the building while on a respite from its tour of the United States. “They’re amazing,” said Nancy Olson, a representative of the Jacksonville Regional Chamber of Commerce’s international division. “When they sing you just tingle all over.” Olson, City Council member Pat Lockett-Felder and others from the City met the choir during a recent goodwill trip to France. The singers originally had no intention of stopping in Jacksonville this month, but Lockett-Felder was quick to make arrangements for them. “Those kids can sing,” she said.