Just call him The Duke. Actor Josh Duhamel and his girlfriend, Fergie, are engaged, his publicist said Wednesday.

Duhamel's publicist, Ruth Bernstein, said her client recently popped the question to the pop star, whose debut solo album is titled "The Dutchess." She did not release any other details.

Duhamel, 35, told Best Life magazine in a recent interview that he's been dating 32-year-old Fergie for about three years and that they have bought a house together.

Duhamel is the star of NBC's "Las Vegas," and appeared in the action movie "Transformers."

Fergie, whose name is Stacy Ann Ferguson, is a member of the Black Eyed Peas. Her hit song "Big Girls Don't Cry" from "The Dutchess" has been nominated for a Grammy award in the best female pop vocal category.

A message left late Wednesday with Fergie's agent, Jonathan Levine, was not immediately returned.