This is from MTV.com
http://www.mtv.com/news/headlines/001011/story11.html

Dido will be contributing a song for a christmas album
called "Platinum Christmas" to be released on November
14th. (sorry to anti-boyband or popstar pundits
but...) Backstreet Boys, NSYNC, Britney Spears and
Christina Aguilera will be contributing their vocals
as well.