Lennon Round Frames: Who's Rocking The Trend Today

[Photo: Ashley Olsen, Mary-Kate Olsen via, Beyonce via] ]
Perhaps the biggest fans of the trend today,
Mary-Kate and
Ashley Olsen are frequently spotted rocking the Lennon round frames. The trendsetting twins, who have a clear affinity for the '60s, have worn the glasses in every style possible, from metal frames, to oversize plastic, to a multitude of colors and lens shades. And they're not alone, some of the biggest celebs and style stars out there today are also opting for the retro shades.

[Photo: Mary-Kate Olsen via, Ashley Olsen via]

[Photo: Nicole Richie via, Alexa Chung via]