Question: Which pageant was held at the T-Mobile Arena in 2016 was won by Deshauna Barber?

Context paragraphs:
2016–17 Pac-12 Conference men's basketball season: The 2016–17 Pac-12 Conference men's basketball season begins with practices in October 2016 and ends with the 2017 Pac-12 Conference Men's Basketball Tournament in March 2017 at the T-Mobile Arena in Paradise, Nevada.  The regular season begins on the first weekend of November 11, 2016 with Arizona-Michigan State, with the conference schedule starting in the last week of December 28, 2016 with UCLA-Oregon.

2016 Billboard Music Awards: The 2016 "Billboard" Music Awards is a music award ceremony that was held on May 22, 2016, at the T-Mobile Arena in Las Vegas, Nevada, the first nationally televised event to originate from that venue.  It aired live on ABC with hosts Ludacris and Ciara.

Canelo Álvarez vs. Amir Khan: Canelo Álvarez vs. Amir Khan, billed as "Power vs. Speed" and also known as "Canelo vs. Khan" or by the portmanteau "Khanelo", was a professional boxing fight which took place on May 7, 2016, and was contested for the WBC, "Ring" magazine and lineal middleweight titles.  It was the first major sporting event to be held at the T-Mobile Arena in Las Vegas.

Deshauna Barber: Deshauna Barber (born December 6, 1989) is an American beauty pageant titleholder, motivational speaker, and captain in the United States Army Reserve.  On June 5, 2016, she was crowned Miss USA 2016 by outgoing titleholder Olivia Jordan of Oklahoma.  She represented the United States at Miss Universe 2016 where she placed among the Top 9 finalists.

T-Mobile Arena: T-Mobile Arena is a multi-use indoor arena on the Las Vegas Strip in Paradise, Nevada.  Opened on April 6, 2016, the arena is a joint venture between MGM Resorts International and the Anschutz Entertainment Group.

Chelsea Hardin: Chelsea Keolani Hardin (born September 5, 1991) is an American public speaker, model, and beauty pageant titleholder who was crowned Miss Hawaii USA 2016.  She was the first runner-up to Deshauna Barber of District of Columbia at Miss USA 2016.

Miss USA 2016: Miss USA 2016, was the 65th Miss USA pageant.  It was held at the T-Mobile Arena in Las Vegas, Nevada on June 5, 2016.  All fifty states and the District of Columbia competed.  Olivia Jordan of Oklahoma crowned her successor, Deshauna Barber of the District of Columbia, at the end of the event.  This was the first Miss USA pageant to be broadcast on Fox Network.  Barber represented the USA at the Miss Universe 2016 pageant, where she placed in the Top 9.

17th Annual Latin Grammy Awards: The 17th Annual Latin Grammy Awards were held on November 17, 2016 at the T-Mobile Arena in Paradise, Nevada.

Kára McCullough: Kára Deidra McCullough (born September 9, 1991) is an American beauty pageant titleholder and a physical scientist at the Nuclear Regulatory Commission.  On May 14, 2017, she represented the District of Columbia at Miss USA 2017 and was crowned the winner by outgoing titleholder Deshauna Barber, also of the District of Columbia.  She will represent the United States at Miss Universe 2017.

Miss District of Columbia USA: The Miss District of Columbia USA competition is the pageant that selects the representative for the District of Columbia in the Miss USA pageant.  District of Columbia representatives Deshauna Barber and Kára McCullough won successive Miss USA titles in 2016 and 2017.

Supporting paragraphs: Chelsea Hardin Miss USA 2016
Answer: Miss USA 2016