Kraft General Foods' Jacobs Suchard unit is yodeling up a storm over the success of its long-running campaign for Leo chocolate from Young & Rubicam
, Brussels. The TV and cinema spots in quick cuts show Tarzan, braided milkmaids and tribal Indian chiefs quite literally yodeling Leo's praises. The ads have propelled the brand into the No. 1 slot in Belgium and Austria and prompted Leo's introduction in Germany.