A press release says:
Dairy Farmers of Canada-Ontario today unveiled a
new television ad featuring a posse of hip hop dancers, chillin' cows, rapping
farmers and a classic Massey Ferguson tractor that hops. The 30 and 60-second
ads are a parody of today's slickly produced rap and hip-hop videos designed
to hit teen's funny bones.
Sounds corny, but it actually works.
UPDATE: There's a copy of the video here.