The King of Pop is lightening his load. At an April auction featuring more than 2,000 personal items, Michael Jackson is set to sell his American Music Award for "Thriller," a velvet cape given to him by his children for Father's Day in 1998, a pair of rhinestone-trimmed socks from 1981, a basketball signed by Michael Jordan and his own original artwork. The 50-year-old singer is also parting with his platinum and gold records, a customized Harley Davidson and a Rolls Royce limousine. The five-day sale was announced in December by Julien's Auctions, but the full extent of the items available wasn't known until Tuesday, when the auction house released images of the lots. The auction begins April 21.