If you were a teenager in the 2000s, you're well aware of the songs you blasted on repeat, the music video dance moves you attempted to learn, and the hei**us fashion crimes you committed. Being able to laugh at yourself is a real art, so why **t show your sense of humor by channeling your former self this Halloween? Whether you decide to rock one of These looks solo or grab some peeps to go as a group, keep reading for 24 ways to get crunk, drop it like it's hot, and shake it like a Polaroid picture With These celebrity costumes inspired by the 2000s.