Surely not Michael Jackson's brother.

And his catch phrase "What's up Dawg?"
Is this from the old cartoon series Deputy Dawg?

Heres "Randy Jackson" a few years ago: http://www.tvtome.com/tvtome/servlet...ersonid-134873

Here's "Randy" now: http://www.amiannoying.com/(rimljb55...w.aspx?ID=5198

Blimey, he's aged..

Edit: Here's a pic *after* the cosmetic surgery: http://www.thedoor.com/gallery/Randy_01.html