Björk & Sjón made a new Song together for the Movie "Moomins and the Comet Chase"

The Moomin Trolls will dance on Björk & Sjón Tune
Singer Björk & poet Sjón have put their creative heads together again and made a new song especially for the movie "Moomins and the Comet Chase", made by Finnish children's movie company Filmkompaniet, and it will be coming to the cinemas in August/September 2010.
Both are huge Moomin fans.
Song title could be "The Comet Song".
Source:
Björk's Website