Country Star Miranda Lambert got into a full blown twitter war with Chris Brown, tweeting that he should listen to her song, "Gunpowder and Lead" which is about a woman plotting to kill her abusive husband. She took it a step further during her concert Thursday in Massachesetts when she held up a sign that read, "Take Notes Chris Brown." Then she told the audience, "I just have to speak my mind, because where I come from, beating up on a woman is never OK. So that’s why my daddy taught me early on in life how to use a shotgun." Chris Brown fires back in a series of tweets. "Using my name to get publicity? I love it! Perform your heart out!"