From the Chemical Brothers' blog:
The brothers and all at Chemicals HQ thank you for your loyal support in '08, and we wish you peace, love and happiness in 09!
As the year winds down, we have one last surprise for you here at The House Of Chemical. As the track is already a must play for ringing in the midnight hour, The Chems have whipped up a special New Years' Eve edition of "Midnight Madness".
This version has been serviced to DJs only for NYE, however we'll be posting the track up here tomorrow for your streaming pleasure. It will no doubt turn up in some of your favorite DJs sets tomorrow night as well (and do be sure and support your local DJ and local music scene).