Hitomi Tanaka on a Japanese TV Show. I saw shows similar than this while I lived in Japan. Basically embarrassing yourself on TV and/or taking advantage of young women eager for fame is a national pastime. Here is a video where Hitomi Tanaka responds to various challenges:
Enjoy it while it lasts, it probably breaks some intellectual property rights. It is work safe, as work safe as you can get when you have a young Japanese woman with large breasts in a bikini on national television.
In other Hitomi news it appears she has gone from being an Idol or Idoru to use the William Gibson spelling to being an AV actress at least I think that is the term. Basically substitute the word AV for Adult Video maybe and you get the idea. AV actresses can still be mainstream, more mainstream than in the US or Canada, I remember seeing Sora Aoi on TV once and asking about her at work, then I Googled her… She was on some talk show just like any other minor Japanese celebrity. Hitomi knows Karate so don’t get any funny ideas.