If you want go see the Rockefeller Center Christmas Tree this year -- you're gonna need a ticket.

New York City Mayor Bill de Blasio announced that spectators will have to reserve a ticket in advance to see the towering Norway Spruce in person.    

MORE: How will your visit to the Rockefeller Center Christmas Tree be different this year? Check out these 11 guidelines and protocols

The idea is to limit crowds as coronavirus cases continue to surge during the holiday season.

The mayor says details about the ticketing plan will be announced in the next couple of days. For more information, go to rockefellercenter.com.