ORLANDO, FL (REUTERS).- An over-stuffed garment rack in a warehouse on the outskirts of Orlando holds some of the world’s most precious second-hand clothing. The frothy white wedding dress worn by Madonna in her music video “Like a Virgin” hangs at one end, while crammed in the middle is Michael Jackson’s red leather jacket from the music video “Beat It.” The clothes, along with Justin Bieber’s skateboard and Ray Charles’ Braille Playboy magazine, are among 40 pieces of rock memorabilia that will go on tour in the United States beginning on May 18 to celebrate the Hard Rock Cafe‘s 40th anniversary. “If an artist gives us memorabilia, they assume we’re going to take care of it and we’re never going to sell it. We have a responsibility,” said John Galloway, Hard Rock’s chief marketing officer. Ever since Eric Clapton donated a red Fender guitar in 1979