Did Fergie and Josh Duhamel Get Engaged at Christmas?

Rumor has it that odd couple Fergie and Josh Duhamel became engaged over the holidays. While Fergie and Josh are totally denying the chatter, sources say otherwise. Josh allegedly popped the question and presented The Black Eyed Peas' Miss Fergie with a four-carat sparkler for her left hand. The two are supposedly keeping the engagement under wraps until they can mutually decide on a date for the wedding. Fergie is said to be looking at the summer of 2008 for a very formal affair.