Arianny Celeste was born Arianny Celeste-Penelope Lopez Marquez in Las Vegas, Nevada. She is of Mexican and Filipino descent.She attended Palo Verde High School and attended college at the UNLV where she majored in fitness management and nutrition.
Celeste made her UFC debut in 2006 at the Hard Rock Hotel. Celeste has modeled for magazines such as Maxim, FHM, Sports Illustrated, Fighter's Only Magazine and Playboy.
On February 4, 2010, Sports Illustrated named her "Lady of The Day.She was voted "2009 Ring Girl of the Year" in 2010 by Fighter's Only Magazine, an award she won the previous year as well. Maxim voted her "The Hottest UFC Octagon Girl" in the May 2010 issue where she was featured as the cover model.Arianny also appears in Maxim's Hot 100 list for 2010; she placed #23 on the list.
In September 2009, high school senior Conner Cordova, a fan of mixed martial arts, asked Celeste to attend his prom with him, using a series of three YouTube videos. Celeste agreed, provided that he found a date for her friend.However, Celeste was unable to appear due to her schedule, so the plan changed to attending another dance. That also proved impossible, so Cordova and Celeste sponsored their own event, which doubled as a fundraiser for victims of the 2010 Haiti earthquake.
The UFC premiered a new weekly, web-only show called UFC Ultimate Insider on July 29, 2010.Celeste serves as host for the show, with Joe Rogan interviewing various UFC fighters. It also features updates on upcoming matches, PPV's, as well as highlights from previous events. The first episode featured a new photo shoot with Celeste.
Celeste posed nude for the November 2010 issue of Playboy.
On December 1, she was voted "Ring Girl of the Year 2010" from the 2010 MMA Awards.On November 30, 2011, she won the award again.