Her musical majesty Bjork has new music coming out next year ... she's writing and performing a song for the film "Moomins and the Comet Chase."

"Björk and Sjón have put their creative heads together again and made a -- we know you love these next two words -- new song especially for the film "Moomins and the Comet Chase", which is made by finnish children's movie company Filmkompaniet, and it will be coming to the cinemas in August/September 2010. reads the announcement on her web site.