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Arcade Fire fans may need to spend a little extra time getting ready for one of the band's upcoming concerts. 

According to a special note on the Ticketmaster site for the Canadian indie rockers "Reflektor" tour, they're asking everyone attending the shows to wear "formal attire or costume." 

They've made similar requests at earlier gigs this year, including their hometown performance in Montreal back in September.  They sent out a tweet explaining that formal attire or costumes were mandatory, adding that by "formal" they mean a "suit, dress, or fancy something." 

Tickets for Arcade Fire's "Reflektor" trek go on sale this Friday, with the outing scheduled to start March 6th in Louisville, Kentucky. 

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