Emma Roberts and Alessandra Ambrosio 'Marchin' in Matching Tees

Celebrities wearing matching outfits can be super awkward ... except when there's a bigger message behind the fashion.

Emma Roberts and Alessandra Ambrosio were both running around Los Angeles last week wearing the same female empowerment shirt emblazoned with the word "Marchin," and showing protestors holding signs stating "Girl Power."

The show of unity by women in Hollywood is a pretty obvious reaction to the Harvey Weinstein scandal.