Guys, get your Halloween motors running, because you're going to blink and then it's going to be a week from Halloween and you won't have a costume. But it doesn't have to be that way — we've got tons of costume ideas, so breathe, reboot, and start clicking through our offerings. If you're the type who likes to have a pop culture reference as a costume and you don't want to be stale, look no further. We've gathered costumes inspired by this year's hottest pop culture so your coolest friends will salute you on Oct. 31.