The entertainment industry's increasing emphasis on diversification has led to the restructuring of Aon's Entertainment Group.

(Logo: http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO )

Effective immediately, Aon/Albert G. Ruben, the worldwide leader in the film and entertainment business, will become part of Aon's Entertainment Group. The 120-employee business manages risks associated with all aspects of entertainment, including film and television, music, theatre, commercials, multimedia, hospitality, gaming and professional sports.

George Walden has been named Aon/Albert G. Ruben's new chief executive officer, succeeding Sam Cargill, who assumes the role of group chairman. For the past three decades Walden served as president of Aon/Albert G. Ruben New York.

In addition, Paul Jones and Brian Kingman have been appointed co-managing directors in Ruben's 88-employee Los Angeles office. Jones focuses on new business development and managing the risks associated with reality television productions. Kingman manages sales and services a variety of motion picture studios and other film and TV production companies. Aon/Albert G. Ruben President Peter Robey will continue his association with Ruben, focusing on expanding the Ruben brand worldwide. Robey will be based in the U.K.

"This is an important step for our organization," says Entertainment Practice CEO Joe Addison. "Many of the companies Ruben deals with are large conglomerates that are diversifying their entertainment, media and hospitality portfolios. It's important that we be in a position to deliver an equally diverse range of products and services to meet clients' needs."

About Aon

Aon Corporation ( http://www.aon.com/ ) (NYSE: AOC) is a leading provider of risk management services, insurance and reinsurance brokerage, human capital and management consulting, and specialty insurance underwriting. Aon has 45,000 employees in 500 offices in more than 120 countries. Backed by broad resources, industry knowledge and technical expertise, Aon professionals help a wide range of clients develop effective risk management and workforce productivity solutions.

  For more information contact:
  Al Orendorff
  312.381.3153
  al_orendorff@aon.com
  http://www.aon.com/newsroom

This press release contains certain statements related to future results, or states our intentions, beliefs and expectations or predictions for the future which are forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from either historical or anticipated results depending on a variety of factors. Potential factors that could impact results include: general economic conditions in different countries in which we do business around the world, changes in global equity and fixed income markets that could affect the return on invested assets, fluctuations in exchange and interest rates that could influence revenue and expense, rating agency actions that could affect our ability to borrow funds, funding of our various pension plans, changes in the competitive environment, our ability to implement restructuring initiatives and other initiatives intended to yield cost savings, our ability to execute the stock repurchase program, our ability to obtain regulatory or legislative changes to permit continuous sales of our supplemental Medicare health product, changes in commercial property and casualty markets and commercial premium rates that could impact revenues, changes in revenues and earnings due to the elimination of contingent commissions, other uncertainties surrounding a new compensation model, the impact of investigations brought by state attorneys general, state insurance regulators, federal prosecutors, and federal regulators, the impact of class actions and individual lawsuits including client class actions, securities class actions, derivative actions, and ERISA class actions, the cost of resolution of other contingent liabilities and loss contingencies, and the difference in ultimate paid claims in our underwriting companies from actuarial estimates. Further information concerning the Company and its business, including factors that potentially could materially affect the Company's financial results, is contained in the Company's filings with the Securities and Exchange Commission.

First Call Analyst:
FCMN Contact: Al_Orendorff@asc.aon.com

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SOURCE: Aon Corporation

CONTACT: Al Orendorff, Aon Corporation, +1-312-381-3153, or
al_orendorff@aon.com

Web site: http://www.aon.com/
http://www.aon.com/newsroom