You are invited to participate in an investor conference call regarding the fourth quarter earnings results for MGM MIRAGE (NYSE: MGG).

  DATE:      Thursday, February 1, 2000

  TIME:      8:00 a.m. Pacific Time
             11:00 a.m. Eastern Time

  CONFERENCE (800) 230-1059 (U.S.) or
  CALL       (612) 332-0345 (International)
  NUMBER:
             Please call the conference call number 10 minutes prior to the
             starting time. An operator will check your name and
             organization and ask you to wait until the call begins.

  WEBCASTING Individuals can access the Webcast through our website at
             www.mgm-mirage.com and at www.streetfusion. com. The call will
             also be made available on replay through streetfusion.com and
             our website for seven days following the call.

  QUESTIONS: Should you have trouble connecting with the special conference
             call number or need assistance prior to, or during the call,
             contact Investor Relations at (702) 693-8770.

  NEWS       A news release will be faxed to your attention prior to the
  RELEASE:   call.

  PLAYBACK:  A playback will be available for 24 hours following the call.
             Please call (800) 475-6701 (U.S.) or (320) 365-3844
             (International) and enter conference Access Code number 566482.

PRNewswire -- Jan. 22

SOURCE: MGM MIRAGE

Company News On-Call: http://www.prnewswire.com/comp/000725.html or fax,
800-758-5804, ext. 000725