Well, I guess you could say I’m a sap for Youtube footage like this.   If you haven’t seen it already, please watch Susan Boyle bowl over the judges and audience of that exuberant, sometime mean-spirited show, Britain’s Got Talent.
 
Clearly, they’ve perfected their formula, first revealed in the now famous Paul Potts tryout, of juxtaposing unprepossessing outer looks with a dazzling voice. 

OK, so I’m pretty sure the responses are at least partially staged, because these contestants have to be pre-screened by the producers…. but, really, who cares??