Step 1: Find a New iTunes Icon

As I'm an icon artist, let me offer some of my own art:

iTunes 10 icon

or any other icons

Step 2: Copy The New iTunes Icon

After you have found a new iTunes icon to use as a replacement, you need to copy it to the clipboard. Just like copying-and-pasting a regular image, you’ll be pasting the new icon over top of the current one.

Step 3: Close Finder

Apple doesn’t really want you to change the iTunes icon. They have marked it “Read Only”. To change other, non-system icons, you can skip this step, but to change the iTunes icon, you need to close Finder and then open it as the system super user, root.

First, close Finder. This is trickier then closing a regular program because Mac OSX wants Finder open all of the time; using traditional methods will automatically restart it. You will need to launch the Activity Monitor and close it using these steps:

  1. Open your Applications folder
  2. Click on the Utilities folder
  3. Click on Activity Monitor
  4. Locate Finder in the list of Process Names
  5. Click on it to select it
  6. Press Quit Process
  7. Press the Quit button to verify that you want to exit

Step 4: Open Finder as Root

After closing Finder without restarting it, you need to open it as the superuser root in the system terminal by following these steps:

  1. Open your Applications folder
  2. Click on the Utilities folder
  3. Click on Terminal
  4. A command line window will open and wait for your input
  5. Type in the following command: sudo /System/Library/CoreServices/
  6. You will be prompted for your system password, input it and press enter
  7. You will not receive a confirmation in the Terminal. Do not close the Terminal window
  8. Click on the Finder icon on the dock bar to open the window as root

Step 5: Paste Your New iTunes Icon

Now that you have Finder opened as root with full write access to every icon, you will be able to paste the icon that you have selected. If you don’t have the icon copied, right click on one of the images above and select Copy Image.

  1. In Finder, open the Applications folder
  2. Locate the iTunes program
  3. Right click on iTunes and select Get Info
  4. Click on the small icon in the upper left hand corner. It will highlight slightly by turning blue
  5. Select Edit from the poll down option menu at the top of the screen
  6. Click Paste

Step 6: Restart Finder, Remove and Add iTunes to your Dock

First, close the Terminal that is running Finder as Root by following these steps:

  1. Press Control and C at the same time. You will be returned to a command line and see the cursor start to blink again
  2. Type in the word: exit
  3. Press the red Close button on the top of the Terminal window
  4. Finder will now be closed
  5. Click on the Finder icon to restart it as a normal user to keep your Mac happy

Next, you need to remove iTunes from your Dock and add it back again by following these steps:

  1. Quit iTunes if it is open
  2. Drag iTunes from your Dock to your Desktop. You’ll see a cloud appear before you let go of the mouse button
  3. Open your Applications folder
  4. Drag iTunes from your Applications folder to the Dock

Your new iTunes icon has now replaced the current one!

new iTunes icon in Dock

See also how to change other icons in Mac OS X. And our huge icon set, 1000+ icons.