Having already butchered the Go-Go's, the Duff sisters will not rest until they ruin '80s nostalgia for everyone, one song at a time. Next up: Madonna's "Material Girl," which you can hear in the sibs' "OMG-it's-so-not-a-Hiltons-satire" flick Material Girls. Here's a publicity still of them in the ghetto. "We are so excited," Haylie told MTV News when the project was ...