Philadelphians and tourists celebrated Independence Day Friday in America’s birthplace as a city workers strike prompted LL Cool J and Jazmine Sullivan, coheadliners of the Wawa Welcome America concert,

LL Cool J and Jazmine Sullivan have both announced they will not be performing at the Wawa Welcome America Fourth of July Concert on the Benjamin Franklin Parkway on Friday due to the ongoing strike.

A sour note for Philly's Party on the Parkway. Both headliners of the Wawa Welcome America Fourth of July concert, LL Cool J and Jazmine Sullivan, have canceled their performances, refusing to cross the picket line as the strike by thousands of city workers stretches into its fourth day.