Club Penguin has released a new stamp in celebration of the Club Penguin Adventure Party 2011. This stamp is called the “Music Maestro” stamp. Here’s how to get this new stamp:
1. Waddle to the Tree Forts in the Forest.
2. Listen to the birds, and watch the colors of the birds jumping up.
Here’s an example of what bird to watch, and what drum to click:

Then you have to click on the green drum:

After you’ve done that puzzle, you will earn the Music Maestro stamp. Here’s a picture of the stamp in your stamp book.

Now you have earned the “Music Maestro” stamp.