Simplest MP3 player I have ever seen

What is the simplest MP3 player software you have ever seen?
I think you haven't seen this. It is called mpg123
I call it simplest because of less features, lightweight and command line interface.
To play an MP3, all you have to do is to enter mpg123 filename.mp3 in the command line. (It is a command line based applicaion)
If you want to see the tag and other information while playing, enter mpg123 filename.mp3 --verbose in the command lline.
If you want to play the files inside a directory, use mpg123 /../dirname
To install mpg123 on your computer, enter the following line in the command line:
sudo apt-get install mpg123
As I remember the package is less than 300 kB and takes less time to download.
Beleive me, I was listenining to my favourite music on the same computer while installing Linux!