Jay-Z’s “Made In America” music festival gets under way in Philadelphia — rain or shine.

The ticketed event begins at 2 p.m. Saturday and runs through Sunday night.

Jay-Z, Pearl Jam, Run DMC, Odd Future, and Dirty Projectors are among some 30 musical performances. As many as 50,000 music fans are expected to attend each day.

Organized by promoter Live Nation and sponsored by Budweiser, “Made In America” will benefit United Way organizations in Pennsylvania, New Jersey and New York City.

Mayor Michael Nutter acknowledged that the city has faced some criticism over costs associated with the event, but said the city also will benefit from the attention on a holiday weekend.

“Labor Day weekend is normally a quiet holiday for the hospitality industry in the city,” Nutter said in a statement. “But the early reports we’re getting indicate substantially increased activity in our Center City hotels. We hope this will mean good news for the entire tourism and hospitality industry, including the many restaurants, shops, museums and bars that those visitors will patronize.”

Parts of the city’s Benjamin Franklin Parkway will be shut down starting at 8 a.m. Saturday to clear the area for setup. Some road closures have been going on for days in neighborhoods adjacent to the parkway, home to the Philadelphia Museum of Art and other cultural institutions.

The region’s public transit agency, the Southeastern Pennsylvania Transportation Authority, was also ramping up service for the event.

SEPTA operates trains, buses and trolleys in the city and regional rail lines to the suburbs and will provide special bus service to a remote parking site at the Mann Center for the Performing Arts.

Melanie Johnson, Philadelphia’s city representative, said Friday that crews were placing trash boxes around the concert area and making sure the art museum and other cultural institutions along the tree-lined parkway have everything they need in terms of access.

The city was also posting “No Parking” signs in some areas and the risk management department has been surveying the site and reviewing the emergency plan.

Johnson said officials will make sure that EMS crews are in place Saturday.

“We’re very happy with the way things have shaped up,” she said.