Ugh, I hate the square butt ad. As a member of the ad industry I'm even more offended, it just gives us a bad name...this food is poisoning kids. A square ass shouldn't be celebrated and that song by Sir Mix a Lot has always annoyed me.
The Burger King commercials are done by Crispin, Porter +Bogusky, probably the most highly regarded and influential ad agency of the last decade....and are apparently highly successful for BK. I've had friends that have worked there, and apparently its run by a guy who's as soulless and self-loving as the advertising he puts out (Alex Bogusky). They also do the Volkswagen work with the annoying German engineers giving the "V-dub" gang sign...which makes me glad I sold my Volkswagen (which I hate to admit, I bought partially on the influence of the ads they did in the '90s, which I loved). The subservient chicken thing that Burger King did was really innovative, though. It didnt' make me run out and buy a whopper, but it was better than most 'viral marketing' ads.