New York City Mayor Bill de Blasio has announced the full lineup for the city's big upcoming "Homecoming Concert." The list covers a range of artists from classic rock mainstays to contemporary rap stars: Patti Smith, Paul Simon, Lucky Daye, The New York Philharmonic, Polo G, Carlos Santana, Rob Thomas and more.

The concert will be held in Central Park on August 21st. A proof of vaccination will be required to enter, and masks will be optional. 80 percent of the tickets will be made available for free.

"This is a celebration of our city, of every working family who faced incredible challenges last year and overcame," said Mayor de Blasio in a statement. "This is a celebration for you."

The announcement is coming at the start of a delayed summer-music festival. The Newport Folk Festival is currently happening in Newport, R.I. Lollapalooza is this weekend in Chicago, Il. But it's also happening as increasing concerns over the delta variant has the Centers for Disease Control revising its guidance on some fully vaccinated people wearing masks.

The concert is being billed as a part of New York City's "Homecoming Week," promoting movie screenings, concerts, restaurants and more to help boost beleaguered businesses hit hard by the pandemic closures. One of the concert's producers, music industry titan Clive Davis, said the show will celebrate "the reopening of New York City."