Both those awesome autotune remixes are made by this group:
http://www.thegregorybrothers.com/" onclick="window.open(this.href);return false;
Their Youtube page is here:
http://www.youtube.com/user/schmoyoho" onclick="window.open(this.href);return false;
They do a popular thing called 'auto-tune the news' and are responsible for many funny videos, like the double rainbow song and the like.
Keep an eye on them, they make some good stuff
