With her "American Idol" gig behind her, Ellen DeGeneres found a new side-job: Runway model.

The hilarious talk show host hit the catwalk last night for Richie Rich's Mercedes-Benz Fashion Week show in NYC -- where she gave off her best Blue Steel look for the cameras.

Wife Portia de Rossi watched from the front row.

Check out more shots from the show -- plus a backstage look at all the models getting ready!

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