Concert promoter Live Nation Inc. said Thursday its loss widened in the second quarter as revenue dipped and it logged costs related to its proposed merger with ticket seller TicketMaster Entertainment Inc.

Los Angeles-based Live Nation, which is the largest concert promoter in the country, reported a loss of $27.2 million, or 33 cents per share, in the quarter that ended June 30. It reported a loss of $652,000, or a penny per share, in the year-ago quarter.

Revenue fell 6% to $1.06 billion, which the company attributed to changes in foreign exchange rates.

Analysts polled by Thomson Reuters, who generally exclude items from their estimates, expected a profit of 14 per share on $1.16 billion in revenue.

The company's North American music revenue remained nearly flat at $693.4 million, while international music revenue dropped 19% to $332.3 million.

Live Nation said it sold 4.3 million tickets in the second quarter, nearly 500,000 of them through its "no service fee Wednesday" promotion. The company expects to see most of the benefits from this promotion during the third quarter.

"We believe that any reduction in margin that we sacrifice on the ticket purchase will be more than made up for in incremental ticket sales and additional onsite spending," said CEO Michael Rapino in a statement.

Estimated total concert attendance declined 2% to 13.1 million people in the quarter from 13.5 million people last year, and total revenue per attendee declined nearly 5% to $78.16 from $81.82.

The company said its number of sponsors during the quarter totaled 576, down nearly 8% from last year, though average revenue per sponsor rose 8% to $78,000.

Live Nation also reported a $14.9 million expense related to its proposed merger with TicketMaster, which it expects to complete during the fourth quarter. The companies are still seeking regulatory approval for the deal, which was announced in February.

Ticketmaster, which is based in West Hollywood, Calif., is the country's biggest seller of tickets to live concerts and other entertainment events. It owns artist management company Front Line Management and ticket-reselling company as well.

Besides promoting shows, Live Nation owns entertainment venues and started its own ticket-selling business in January that currently competes with TicketMaster.

Opponents of the deal have said it will hurt competition and increase ticket prices for consumers.