Does anyone know of some good halloween hip-hop music?

I'm choreographing dance combinations for a hip-hop cl, and since Halloween is coming up I thought it would be fun to have some spooky halloween music :) I'd still like it to be hip-hop, though, because I'm pretty bad at choreographing hip hop dance to other types of music. The kids are aged 7-9, so nothing inappropriate, please! Thanks in advance for suggestions :)