Jay-Z has announced the first round of headliners for the Budweiser Made in America festival, which takes place on Labor Day Weekend in Philadelphia. Among the artists headlining the event include Rita Ora, D'Angelo, Calvin Harris, Afrojack, Skrillex, Maybach Music Group (Rick Ross, Meek Mill & Wale) and Odd Future.

Other varied acts listed on the bill include Pearl Jam, Santigold, Janelle Monae and others. More performers are scheduled to be announced in a few months. Over 30 artists will invade Philly to rock the two-day festival, which will be held on three stages at the city's Fairmount Park area on Sept. 1 and Sept. 2.

Pre-sale tickets are already sold out. Tickets for the general public will be available on Wednesday (May 23) at $135 a pop (plus surcharges). Proceeds from the sales of the tickets will benefit the United Way chapters of Philadelphia and New Jersey.

"I can’t do half-baked work," said Jay-Z at a press conference earlier this month. "So, I’m really putting my all into this. It's gonna be a great day in Philly."