A free app for Android, by B2BRICH.

This app is the best and most complete collection of all of the Metallica songs and ringtones that you will need for your Android phone or device. It contains many of their most popular and best songs, including:

Metallica, In That Dark Place, Death Magnetic, Battery, Blood Sugar, Beyond The Wall, Don’t Tread On Me, Dyers Eve, Falling to Pieces, Fuel, Ghost, God Help Me, Have A Nice Trip, Keep It Cool, Lady Leer, Lawless, Looking For Someone, One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Eleven, Twelve, Thirteen, Fourteen, Fifteen, Sixteen, Seventeen, Eighteen, Nineteen, Twenty, and Twenty-two.