Music Station, episode 1000!
Music Station 1000 episode on 12 Feb. It's a 3 hours SP.
Arashi will appear! KAT-TUN and others too ^_^
Source: http://www.sponichi.co.jp/entertainment/news/2010/02/02/03.html
EDIT:
Arashi will perform Troublemaker and Yurase Ima wo! ^_^