Propaganda in Advertising

The techniques 'weight watcher' commercial uses here are:

Beautiful People:
The type of propaganda that deals with famous people or depicts attractive, happy people. This makes other people think that if they buy a product or follow a certain ideology, they too will be happy or successful.(Wikipedia definition). In this advertisement Jennifer Hudson is used to show how she lost weight getting in to the weight watcher plan.

Ad nauseam:
This argument approach uses tireless repetition of an idea. An idea, especially a simple slogan, that is repeated enough times, may begin to be taken as the truth. This approach works best when media sources are limited or controlled by the propagator(Wikipedia definition).To some extent the word 'I can' is repeated which assures the audience that it is possible to lose weight joining weight watchers . Even the background music says 'I can'