Miss Universe 2012

American rock band Train and Australian musician Tim Omaji performed in this year's pageant.

[7] In August 2012, the Dominican government received a proposal from the Miss Universe Organization to host the competition on December 11, 2012.

[7][9] The organization moved the pageant to Las Vegas, Nevada in December changing from the customary mid-year scheduling.

On September 27, 2012, the organization confirmed that the 2012 pageant would be held at the Planet Hollywood Resort & Casino in Las Vegas, Nevada, on December 19, 2012.

[12] Carola Durán, Miss Dominican Republic 2012, was to compete, but was dethroned after it was discovered that she was previously married and is divorced.

[17] Avianca Böhm, Miss Universe New Zealand 2012, was replaced by her first runner-up, Talia Bennett, due to citizenship issues.

Egypt, Portugal, Slovenia, Turks and Caicos, and the U.S. Virgin Islands withdrew after their respective organizations failed to hold a national competition or appoint a delegate.

The changes in the rules came after Jenna Talackova, a transgender woman competing at Miss Universe Canada 2012, was reinstated, having been removed from the pageant.

[24] A month after her removal, the organization allowed Talackova to compete provided that "she meets the legal gender recognition requirements of Canada, and the standards established by other international competitions.

Planet Hollywood Resort and Casino, the venue
Pparticipating countries and territories