The stylish celebrities join Lily Collins, Stella MCCartney, Cara Delevingne and Kerry Washington on the list.
Describing Blanchett's style, editors of the U.S. publication write, "No matter the occasion, the Blue Jasmine star greets the red carpet triumphant, always nailing the daunting combination of fashion-forward and timeless elegance."
Rihanna, who hosts U.S. reality Tv show Fashion Star, is praised as "a sartorial volcano liable to erupt at any moment in the most fabulous anytime-anywhere ensembles imaginable. She laughs at the phrase dress code, opting for maned and sequined Tom Ford or printed Christopher Kane sweats for a sidewalk jaunt."
Kerr, who has walked the runway for Victoria's Secret, has a fashion sense described as a, "Street-style Barbie in the absolute best way, the Aussie model makes even a mundane outing look like the most glamorous... in history."