WinAmp is a popular little program by Nullsoft used to play various media files like MP3s. It can be downloaded from their web site for free.
What's great about WinAmp, is that it allows you to change the interface! Don't like how the program looks? Tired of the navy? Then skin it with a photo of your favorite artist, your pet, whatever! Here's a before an after, with a skin of singer Charlotte Church.
