It's almost time for the Miss Universe 2017 pageant!

Almost 100 women from around the world, including Miss USA Kára McCullough (formerly Miss District of Columbia), will be competing in the annual event, which takes place at the AXIS at Planet Hollywood Resort & Casino in Las Vegas, Nevada on Sunday.

Earlier this week, the contestants modeled some seriously stunning evening gowns at a preliminary competition.

Steve Harvey returns to host the Miss Universe pageant, marking his third time. Fergie and Rachel Platten will perform onstage, while model Ashley Graham will serve as a backstage host. Miss Universe 2016 Iris Mittenaere from France will crown her successor at the end of the three-hour show.

Miss USA, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Thailand, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Trinadad & Tobago, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Malta, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Japan, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Romania, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Malaysia, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Namibia, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Colombia, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Canada, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Bulgaria, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss British Virgin Islands, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Nicaragua, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Kazakhstan, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Finland, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Peru, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Philippines, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Slovak Republic, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Egypt, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Ghana, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Paraguay, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Ethiopia, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Ukraine, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Haiti, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Saint Lucia, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss US Virgin Islands, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Uruguay, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss India, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Vietnam, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Spain, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Norway, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Mauritius, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Guam, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Turkey, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Georgia, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Sri Lanka, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Poland, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Austria, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Panama, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Tanzania, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Zambia, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss South Africa, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Venezuela, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Guatemala, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Slovenia, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Nigeria, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Great Britain, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss Mexico, 2017 Miss Universe, Evening Gown Preliminary Competition

The Miss Universe Organization

Miss USA talked to E! News a few days ago about how she's preparing for the contest.

"I'm making sure my mental psyche is always very leveled and sane," she said. I try to go to the gym at least three times a week and I'm just like, you know, staying well-informed with what's going on in the news because as Miss USA, as a contestant, it's always important to always have an opinion about things that are going on."

She said she has been eating "very whole meals" made up of cooked vegetables, lean meats and fish.

"I'm nervous, I'm excited," she said. "I'm just like kind of in an area of just like euphoria right now because I'm still in shock at the fact that I get to represent USA at the Miss Universe competition."

The 2017 Miss Universe pageant will air live on FOX on Sunday at 7 p.m. ET.

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