It’s Frieze art week in London…. As art fairs and festivals bring a cosmopolitan crowd to London and Paris, a different question comes to the fore: Is art now more fashionable than fashion?

So art is fashionable — as it was in the era of Art Nouveau or in Paris in the 1920s.

But what is fashionable for art lovers to wear?

10-20-2013 12-05-15 PMCollector Guya Bertoni’s Stella Jean dress, Fendi boots, Versace cardigan, and Anna Dello Russo for H&M necklace, with Jeff Koons’Sacred Heart at Gagosian Gallery.

10-20-2013 12-05-47 PM Riccardo Tisci in a corner at White Cube with a Gilbert & George.

10-20-2013 12-06-37 PMOsman Yousefzada with gallerist Pilar Corrias, in Osman Yousefzada, discussMorris Men with Brown Stain (2013) by Iranian-American artist Tala Madani.

10-20-2013 12-07-05 PMFrances Upritchard, in Peter Pilotto, with Peter Pilotto and Chris De Vos,visiting Thomas Solomon Gallery at Frieze Masters to look at sculpture by Gordon Matta-Clark.

10-20-2013 12-07-42 PMRoksanda Ilincic, wearing her designs, with collector Valeria Napoleone, wearing Roksanda Ilincic shirt, Osman Yousefzada denim jacket, and a Pleats Please Issey Miyake skirt, at the Hollybush Gardens gallery.

10-20-2013 12-08-14 PM Elli Loizou, associate director of White Cube, in her Roksanda Ilincic dress.

10-20-2013 12-08-44 PMPhilanthropist art collector Tania Fares wears a Lulu & Co. sweater, Stella McCartney skirt, Saint Laurent boots, and a Claire Barrow for Matches bag to look at work by Caragh Thuring at Thomas Dane Gallery.

10-20-2013 12-09-10 PMLily Atherton Hanbury, who works for Phillips auction house, amongst Rob Pruitt’Safety Cones (After Richard Serra) at Gavin Brown, wearing her mother’s vintage chiffon pants and Alexander McQueen biker jacket and boots.

10-20-2013 12-09-36 PMThalassa Balanis, wearing an Alexander Wang skirt and sweater with Maison Martin Margiela shoes.

10-20-2013 12-09-57 PM Christina Michaelidis looks at Ryan McGinley’s photographs at Team (gallery inc.) dressed in a John Rocha suit, Alaïa shoes and bag, and Lanvin necklace.