Fashionistas have been on a quest for the ultimate in festival chic, with round sunglasses by labels including The Row and Dries Van Noten among the most viewed items on online style sharing community Polyvore during the past month.

The site's latest Intelligence Report cites circular shades as the month's biggest accessories trend, with the style popularized by celebrities including Lauren Conrad and Dita Von Teese at last month's Coachella music festival in California running ahead of other shapes. Other fans of round frames include Lady Gaga, Beyoncé Knowles and Mary-Kate and Ashley Olsen.

The latter's own label The Row has earned 21,662 views on the site for its round frames, while other popular brands include Angelina Jolie's favorite Barton Perreira, Selima Sun® for J.Crew sunglasses and Thierry Lasry's patterned styles. But it was a pair of dark grey marble printed shades by Dries Van Noten x Linda Farrow that clocked up the most views -- 94,750.

Other festival accessory staples dominating Polyvore include straw hats, with a Biltmore® straw fedora earning 324,684 views on the site. Such styles were all over last month's Coachella music festival in California, with the likes of Emma Roberts and Vanessa Hudgens favoring the look.

Meanwhile, the wedge sneaker trend is still refusing to budge, with Isabel Marant's high tops still number one in a compilation of top incoming searches to the site.