The New York Post reports it found 267 listings on eBay on Monday for the sold-out concert. The prices ranged from 99 cents to $1,500.
New York City has distributed 60,000 tickets to the concert, with each person limited to two freebies.
The performance is billed as a prelude to the July 15 All-Star baseball game, which will highlight the final season at the old Yankee Stadium.
Kimberly Spell, a spokeswoman for NYC Marketing, says lawyers will be contacting eBay officials to make them aware of the situation.
Information from: New York Post, http://www.nypost.com
