Actor Kevin Spacey has stepped in to replace Tommy Lee Jones as host of next week's (begs10Dec07) Nobel Peace Prize concert - after the Men In Black star pulled out. Spacey will now co-host the concert - to be aired across 100 countries worldwide - with actress Uma Thurman in honour of recipients Al Gore and the United Nation's climate change panel. Jones, who was former U.S. vice-president Gore's roommate at Harvard University, pulled out "for personal reasons". Kylie Minogue, Alicia Keys and Annie Lennox are due to perform at the show, which will be held in Oslo, Norway, on 11 December (07) - the day after the Nobel Peace Prize ceremony. Also on the bill are British pop star KT Tunstall, Earth Wind + Fire, A-ha singer Morten Harket and Junoon, one of Pakistan's most popular rock bands.