In 2007, she became a Victoria's Secret Angel, and appeared on the cover of the 2008 Sports Illustrated Swimsuit Issue to record-setting numbers. Her accomplishments have led to her being dubbed the "return of the great American supermodel."
She is known for contracts with companies such as Harley-Davidson, for whom she is the first spokesperson in the history of the company, and the NFL, for whom she became a spokesperson in 2010.
She ranked No. 1 on Maxim magazine's 2008 "Hot 100" list and in FHM's global 2010 "Sexiest Women in the World" poll.
Aside from modeling, she was an ambassador for both the American Cancer Society and the USO. Miller made her film debut in R.I.P.D. (2013).