Happy 60th birthday to Billy Bragg who was born on 12/20/57. Blending elements of folk music, punk rock and protest songs, Bragg is the singer-songwriter of many causes. He is most notable in the states for his collaborations with Wilco on the Woody Guthrie Mermaid Avenue Vol 1 and 2 albums. Watch Bragg perform as part of the NPR Tiny Desk Series in 2013…