MAC Cosmetics And Rick Baker’s Monster Mash Published October 23, 2013 at 600 × 397 in Kelly Osbourne, Jason Priestley, Slash Attend MAC Cosmetics and Rick Baker’s Monster Mash GLENDALE, CA – OCTOBER 19: Rick Baker (C) and guests attend MAC Cosmetics and Rick Baker’s Monster Mash on October 19, 2013 in Glendale, California. (Photo by John Sciulli/Getty Images for MAC Cosmetics)