OK - the most recent edition of America's Got Talent amused me to no end. (Is it wrong for me to be so entertained by such crap?) Here are my two favorites:
Leonid the Magnificent (warning: this clip is long, but it shows you just how kooky this man is)
And another favorite ... Bianca Ryan, who is only 11 years old. I usually hate kid singers (mainly because I'm jealous) but she's got some pipes!