In 1999, the boy band Backstreet Boys released Millennium, their third album. The group was already a massive mainstream success by this time. Fans screamed at the top of their lungs at the faintest site of their fedoras. It was a cultural phenomenon. So it's no wonder that when they released Millennium, which featured some of their biggest hits like "I Want It That Way," the album went to #1 across the globe and was later certified Platinum in just as many countries. It went on to sell over 20 million copies worldwide. This original Backstreet Boys shirt, nicely worn in and faded, is from the release of Millennium in 1999.