One became a major music star singing country.
One became the star of a show called The City.
Both look gorgeous in the same black and white dress - but there can be only one winner in our latest celebrity fashion face-off! Who will it be?
Carrie Underwood went for a glam look at a pre-Grammy Awards party in a Pamella Roland dress, while Whitney Port showed off her seemingly endless legs in the same dotted minidress at a fashion event in New York this past week.
Who do you think looked best?
Who looked best in the dress?