It's practically a given that any actress who steps foot on the Oscars red carpet will look gorgeous, but only a very special and select few can be called "unforgettable."
InStyle Editor-at-Large Hal Rubenstein joined the ladies of The View Monday morning to chat about just that: the most extraordinary ensembles we've seen in the 86-year history of the Academy Awards red carpet. From the ice-blue Edith Head dress Grace Kelly wore (three separate times!) in 1955 to Julia Roberts' game-changing vintage Valentino in 2001 and Nicole Kidman's John Galliano-designed Christian Dior in 1997 (striking because everyone was in pastels at the time), Rubenstein conjured up a few choice picks we always find ourselves reminiscing about each time awards season rolls around.
Click through the gallery to see these looks and more, and be sure to check back here this Sunday, March 2 beginning at 6:00 p.m. EST to see just who -- Lupita? Sandra? Cate? -- might take the "unforgettable" title at this year's ceremony.