The most coveted beauty pageant in the world, Miss Universe will be held at the Planet Hollywood Las Vegas Resort & Casino on Sunday, 20 December at 7.00 PM (EST). The competitions are already underway, with the preliminary round having been completed as of 16 December.

Miss Universe 2014, Paulina Vega, will crown her successor at the end of the event, in which international sensations like Charlie Puth, Seal and The Band Perry perform. The Miss Universe 2015 pageant will be hosted by the Puerto Rican singer and actress Roselyn Sanchez, and the comedian and host Steve Harvey.

While all the gorgeous women have made a mark on the Miss Universe fans one way or another, there are a few contenstants who have maintained popularity in throughout the pageant, with Miss Vietnam Huong Pham and Miss Philippines Pia Wurtzbach ruling most social media conversations.

Tuấn Anh : "I hope Huong Pham will be the next Miss Universe 2015. She is the girl of pretty, smart, goddess. Please vote for her".

Skylar Jude: "I think its a great battle between Vietnam and Philippines smile emoticon"

Phoebe Lee: "Ok, all misses are great, but Pham Huong is the best"

Laizing Suico: "Miss Philippines will be the next Miss Universe. #PiaPinas"

Edward E Bartz: "i love you miss vietnam. i think she deserved to be Miss Universe 2015"

Miss USA Olivia Jordan, Miss India Urvashi Rautela and Miss Colombia Adriana Gutierrezz are also among the most talked about constants on the internet.

The judges at the Miss Universe contest at Planet Hollywood are Emmitt Smith, Niecy Nash, Olivia Culpo and Perez Hilton this year. However, for the first time, viewers are not just expected to make winner predictions, but they also have a say in deciding who the Miss Universe winner will be. To vote for your favourite contestants and better their chances at winning this year, vote here.

To book the tickets for the dress rehearsal, which begins at 1.00PM (EST) on 20 December, click here, and to book tickets for the 2015 Miss Universe pageant finale event, visit here. To livestream the event watch FOX at 7.00 PM (EST) on Sunday, 20 December, visit the Miss Universe official youtube page or head on to Fox Now!