Is there a queen of Mardi Gras?

There tends to be multiple women who are given the title of 'queen' during Mardi Gras, including those who are appointed to the royal court of a specific parade krewe. However, the queen of the Rex Krewe is known as the Queen of Carnival, and some people believe that the woman upon whom this title is bestowed is the true queen of Mardi Gras.

Unlike the king of the Rex Krewe, who is allowed to participate in the krewe's parade, the queen is limited to sitting on a specially designated viewing platform as the parade rolls past. Queens from other krewes may have other duties.