It's not on youtube, but I've seen a Billy Mays commercial dubbed in Japanese. This is a real commercial as well, not a fan dub of any kind. I live in Japan, but I can't stand their TV programming. I haven't watched Japanese TV in over a year.
Seriously, this is why I love watching Japanese stuff. Their anime rules, their commericals rule and both the women and men look so good, these women shown in two of these commercials in this thread just owns like 90% of women I see/have seen.