Do They Know It’s Halloween?, a parody of past all-star charity singles, will attempt to rally support to end the holiday of ghouls and feature an interesting array of artists. Beck, Sum 41, The Arcade Fire, Sonic Youth, Yeah Yeah Yeahs, Elvira, Postal Service, Roky Erickson, and others will be contributing their talents to the song. The single will see release October 11 with all proceeds benefiting UNICEF.http://www.gigwise.com/news.asp?contentid=8138