Students from Philadelphia attended National Song contest in San Francisco . They prepared six days a week for the competition , where they performed before judges . Philadelphia wants to show city has teens who are doing positive things with lives . Philadelphia has had problems with flash mobs -- violent attacks on people and property .
Students from Philadelphia win National poetry contest in San Francisco . They prepared six days a week for the competition , where they performed before judges . Team wants to show city has teens who are doing positive things with lives . Philadelphia has had problems with flash mobs -- group attacks on people and property .