Six13 has done some great Hanukkah tunes in the past, most especially last year's "I Light It". This year, they're doing a "We Are The World" takeoff, complete with faux Springsteen and faux Dylan and (possibly) real Kermit. It's no "I Light It", but the dude with the "We are the 0.2%" sign was pretty funny. You can find "Chanukah Rights" on iTunes and Amazon MP3.
I love Christmas, music, and cats. What more do you need to know?