how many have appeared on these shows like BGT, Pop Idol over the years, how many fell by the wayside, one album released, then nothing, Cowell is a mercenary who exploits people, and the public's taste for the underdog. very few stay the course, and the hundreds of thousands who audition, they think they have something special, they don't, those who truly make it usually are the ones who have done their time, clubs, pubs, and have a degree of talent.
the reason Susan Boyle did well, was partly the shock value, of seeing this frumpy, dowdy woman sing well, and that one Hollywood celeb, stuck it on youtube, so her performance went global. I like her and she has a good voice, but so do many,
as to DW, don't like the camp act.