Open your iTunes application or your preferred MP3 music player.
Locate and highlight the song you want to edit.
Use your mouse and right-click the highlighted song.
Look for the "Get Info" option in the drop-menu. Click it and a new pop-up window will appear.
Click the "Title" field with your mouse cursor. This will allow you to edit the song title. The title can be a total of 90 characters in length; however, in most music players and devices, only the first 30 characters are displayed.
Save the song title and information after making your changes.