Wyatt was born in Warrensburg, Missouri, a university town near Kansas City. Her father is a trucker and her mother travels with him. Before dancing, she attempted Tee-Ball, basketball and Brownies, citation needed] which ended unsuccessfully. Wyatt began dancing at the age of seven. When she was fourteen, she earned a scholarship to study in New York's Joffrey Ballet and the Broadway Dance Center. At the age of seventeen, she graduated from high school and flew to Las Vegas to audition for cruise ship and casino shows. She worked in a revue on Royal Caribbean's Explorer of the Seas, and visited most of Southern Europe.

She moved to Los Angeles in 2001 to pursue her dance career, despite an offer from the Hubbard St. Dance Co. in Chicago. In 2002, Wyatt became one of the dancers on the comedy sketch show, Cedric the Entertainer Presents.

In 2003, Wyatt participated in the Black Eyed Peas' video "Shut Up" along side fellow PussycatDoll Carmit Bachar, and was the choreographer and dancer for a music video for Nick Lachey's solo album. During the video shoot, choreographer Robin Antin, founder of the PussycatDolls asked Wyatt to join the group. Like her fellow members, she is a salaried employee of Interscope Records. She is best known with her dance sign, standing oversplit, which is shown in most of PussycatDollsmusic video. She stated herself in Loose Women that it is her trademark move, as she said that "her leg has become a celebrity in its own rights."

Wyatt's first vocal role in the PussycatDollscame when she recorded a solo song called "Don't Wanna Fall in Love" for the Deluxe Edition of their second album, Doll Domination.

Wyatt resides in Los Angeles, California. She has one dog, a Chihuahua named Cupid. She is currently dating actor Kevin G. Schmidt. Wyatt is also very big on charity work, and contributes a lot to RAINN.