Legendary pop artist Andy Warhol's portrait of Michael Jackson has been put back up for auction after bidding was stalled last week (12Jul09) due to high demand for the late King of Pop's memorabilia in the weeks following his death. The artwork, which shows Jackson smiling in a red jacket inspired by his infamous Thriller costume, is expected to sell for between $1 million (£666,670) and $10 million (£6.6 million) at the Vered Gallery auction in East Hampton, New York when bidding closes on 18 August (09).