This day marks the day two fashionistas — Mary-Kate and Ashley Olsen — entered this world 25 years ago. And we're glad they did! We can't imagine life without their distinctive, covetable style. While Mary-Kate stays true to her bohemian-chic style roots — rocking oversize printed dresses, tons of jewelry, and John Lennon-style sunnies — Ashley makes the most of her minimalist polish; nobody can kill a white button-down or Calvin Klein sheath dress like her. They're entrepreneurs, respected designers, and true style stars; and on Monday they turn a mere 25. They've accomplished so much already, it's hard to believe they're only four years beyond the legal drinking age. Let's all wish our favorite twins a happy 25th by checking out their most interesting and innovative outfits through the years.