MGM MIRAGE Announces New Promotion and Appointment

January 22, 2007
Merlinda Gallegos is promoted to Vice President of Corporate Philanthropy
Gary Mayo is appointed as Vice President of Energy and Environmental Services
PRNewswire-FirstCall
LAS VEGAS

MGM MIRAGE (NYSE: MGM) today announced the promotion of Merlinda Gallegos to the position of Vice President of Corporate Philanthropy where she will oversee the company's charitable giving initiatives and activities associated with the Voice Foundation. The Voice Foundation is the company's nonprofit entity that collects and disperses employee donations to deserving charities and causes where its employees live and work.

Gallegos joined MGM MIRAGE in 2005 as the Director of Corporate Philanthropy. Under her leadership, the philanthropy department directed the Katrina Recovery Fund and other relief services for employees of the Beau Rivage in Biloxi, Mississippi. Additionally, her team successfully introduced the Voice Foundation at Mandalay Resort Group properties following the merger with MGM MIRAGE in 2005.

Gallegos holds a Ph.D. in sociology from the University of Nevada Las Vegas, where she serves on the advisory board for the College of Liberal Arts.

Also, MGM MIRAGE announced the appointment of Gary Mayo as Vice President of Energy and Environmental Services. In this role, Mayo will create and execute the corporate strategy for sustainability and raise the awareness among employees, business partners and guests.

Mayo joins MGM MIRAGE from Visteon Corporation where he launched various business efforts, such as customer service, government affairs and corporate responsibility programs.

Mayo earned his Bachelor of Science Degree in Marketing from Long Island University and Master in Business Administration Degree from Duke University.

About MGM MIRAGE:

MGM MIRAGE (NYSE: MGM), one of the world's leading and most respected hotel and gaming companies, owns and operates 23 properties located in Nevada, Mississippi and Michigan, and has investments in three other properties in Nevada, New Jersey and Illinois. The Company has entered into agreements to sell its three Primm Valley Resort properties located in Primm, Nevada and its Colorado Belle and Edgewater properties located in Laughlin, Nevada. In addition, the Company has major new developments under construction in Nevada, Michigan and Macau S.A.R. CityCenter is a multi-billion dollar mixed-use urban development in the heart of the Las Vegas Strip; a new MGM Grand hotel and casino complex is being built in downtown Detroit; and the Company has a 50% interest in MGM Grand Macau, a hotel-casino resort currently under construction in Macau S.A.R. MGM MIRAGE supports responsible gaming and has implemented the American Gaming Association's Code of Conduct for Responsible Gaming at its properties. MGM MIRAGE also has been the recipient of numerous awards and recognitions for its industry-leading Diversity Initiative and its community philanthropy programs. For more information about MGM MIRAGE, please visit the company's website at http://www.mgmmirage.com/.

First Call Analyst:
FCMN Contact: lgarcia@mgmmirage.com

SOURCE: MGM MIRAGE

CONTACT: Media, Reggie Burton, +1-702-650-7438, reburton@mgmmirage.com,
or Laura Garcia, +1-702-650-7439, lgarcia@mgmmirage.com, both of MGM MIRAGE

Web site: http://www.mgmmirage.com/