Now that the quarterfinals are over and we have our first 16 semifinalists, we take a break for our special YouTube show. It's the show the producers are both excited and nervous about.

For the top 48 quarterfinalists, we feel like we know them. We have seen them audition for the judges initially, watched them perform in Las Vegas and worked with them to prepare them for the live shows. In the case of the YouTube acts, they were selected just by watching a 90-second video online. Now they are coming in to perform live on TV for millions of people. There are always some major surprises in store for us and you.

The other fun thing is that one of the YouTube acts has bypassed the judges completely and been chosen completely by those of you who voted in the online contest.

Speaking of which, after the YouTube week, we are doing a wild card week. For the first time ever, the judges have asked for your help. They want to hear your opinion on who to bring back. Go to NBC.com/agt and pick your favorites.