As we surge through the end of a tough winter into a new spring, lots of things are changing. That feeling of being soaked by the rain and congested from the sprouting foliage is coming back with a vengeance. There are other people outside now and everyone is dressed in mismatched layers of clothing as no one knows what the weather will be like. This week, we decided to bring you a list of songs united by something that will never change: a sick, nasty line of bass guitar. So put that umbrella down and get your hands ready to imaginarily pluck along with these sexy, bass-heavy grooves.