AEROSMITH band member Steven Tyler didn't get to fulfil a long-held fantasy this weekend, at the request of Priscilla Presley. Tyler had planned to eat a special Elvis peanut butter, banana and bacon sandwich during a private tour of the Presley Graceland mansion in Memphis. But Elvis' widow asked Tyler not to go through with the stunt because, according to the Boston Herald, she told him that Elvis had suffered from an eating disorder. Tyler said he agreed. ''I told her everything I ever did in my life was either illegal, immoral or fattening.'' Tyler didn't go hungry, however. At Sun Studios, where the King recorded in his early days, Tyler and other members of the Boston-based band munched down Elvis specials. During a tour of Graceland, Tyler said it was ''an honour to be here, because Elvis lived here and he's here in death''.