Tickets for Barclays Center's opening event — a Sept. 28 concert by Jay-Z — will go on sale to the general public this Friday at 10 a.m., and concerts on Sept. 29 and 30 have been added. While at least 7,000 tickets per show are priced at $30 or less, all available tickets, which range in price up to $254, are expected to sell quickly. About 14,586 seats are available for each show. For ticket information, visit BarclaysCenter.com. Jay-Z, a native Brooklynite and part-owner of the Brooklyn Nets, is pictured during a concert in March in Austin.