There's a new holiday in our calendars: Henceforth, the day before Earth Day, April 21, ought to be ordained Blake Lively Day. In less than a 24-hour span, the show-stopping actress made more outfit changes than most make in a week—we've tallied 10 so far. Yesterday, we documented seven of her incredible looks, but Lively completely switched up her style (and we mean head to toe) three more times before the end of the night.
The 27-year-old arrived at the New York studios of The Tonight Show Starring Jimmy Fallon in a off-the-shoulder Zuhair Murad cocktail dress (above). Double-strand pearls and sparkly Christian Louboutin pumps accompanied the navy and white frock.
For the filming of the show (during which she played the "Say Anything" Challenge with host Fallon), Lively slipped into an Antonio Berardi black and navy sheath dress with gold embellishments below the right shoulder and metallic pumps. (You didn't think she was going to be caught wearing the same thing for the episode, now did you?)
PHOTOS: Blake Lively's Changing Looks