Help Needed

I need a little help here.

This will be very, very short.

I need some Christmas carols, in Portuguese, to, uh, 'sing' (caterwaul, rather) at a Christmas party in our place about a week from now. A good friend of our family is coming home after almost a decade of living in Portugal. Can anyone suggest some good ones? Mi madre wanted something upbeat from us. Thanks in advance :) .