The 'rules' about buying a band T-shirt: know at least 10 of their songs - and wear it to gigs

With the vintage music T-shirt market booming, a new survey reveals the habits of buyers A new survey has found that music fans believe you should know at least 10 songs by a band before wearing their T-shirt. But for fans of folk music, K-pop and jazz, you should know at least thirteen. The poll, by merchandise site Rush Order Tees, asked 1,017 owners of band T-shirts about their purchasing habits and beliefs about music apparel. Thanks to the growth of the "nostalgia economy" and resale platfo...