It's at least worth noting that Disturbed was only Nu Metal for their first album, after that they moved away from it and are now alternative metal like Breaking Benjamin. I believe they admitted they only did nu metal at first because it was the big thing at the time, but now they don't think back too fondly on it. In particular David Draiman has said he's a bit annoyed how some people only know him as "that guy who did monkey sounds on that song."