Free Tickets to America's Got Talent Auditions:: New York, Atlanta, Houston

From the page I got after registering, just FYI:

This taping lasts approximately 4-5 hours.

Dress Code:
YOU MUST ADHERE TO DRESS CODE. YOUR ADMISSION DEPENDS ON IT. Hip, upscale attire is mandatory. You will be on camera so it is very important that you dress nicely! When you look great, the show looks great! No shorts, t-shirts, or hats. We'd prefer you don't wear jeans. BRIGHT COLORS ARE APPRECIATED. Absolutely no white attire or clothing with logos or writing will be allowed into the theater.

NO CELL PHONES, PAGERS, OR CAMERAS WILL BE ALLOWED INSIDE THE THEATER. If you must bring your phone, there will be a phone check at the studio similar to a coat check. You will not be permitted to bring any large bags or backpacks into the theater. Please leave them in your car. Small purses are allowed.