I've always loved the way some ads -- on the TV, in print, on billboards -- can assume the level of high art. (On the contrary, I hate commercial radio where the ads are intrusive, embarrassingly naff, and just feckin' annoying.)
But let's have a big cheer for the noo
Cadbury's ad. (If your internet connection can cope, please hit the watch in high quality button!)
[Edited to add] Don't bother looking at the "official" link on that page to the Gorilla ad ... stupid Cadbury's gave in to corporate pressure and removed the Phil Collins track (bet it wasn't the hoarsey-voiced drummer who made them pull it). Anyway, the real monkey is
here. Classic.