Beyonce and Solange Knowles; Mary-Kate and Ashley Olsen. (Larry Busacca/Getty; Cindy Ord/Getty)

The twins will grace the cover of the fashion bible’s “Best Dressed” supplement because, as the editon’s editor Mark Holgate rhetorically asked to Reuters, “Are there any more chic, stylish, cool, and original sisters than Mary Kate and Ashley Olsen?”

This assessment may make regular folk scratch their heads, due to the fact that the ladies’ outfit choices are at times placed on worst dressed lists for being absolutely crazy. But that’s just a part of being the fashion elite, apparently. Holgate explained:

“They get it right a lot of the time and then sometimes they don't get it right. That's actually great ... They don't have someone telling them, 'This is cool, this is hot, this is what you should be wearing.' It comes from within them. It's instinctual.”

The Olsens are joined by nine other groups of sisters, including actresses Elle and Dakota Fanning, Beyonce Knowles and younger sis Solange, “Dragon Tattoo” star Rooney Mara and Kate Mara, and Pippa Middleton and Duchess Kate.

View Photo Gallery: ‘Full House’ stars turned fashionistas Mary-Kate and Ashley Olsen celebrate their 25th birthday on June 13, 2011.