8. Alabama Shakes, 'Boys and Girls'

In one fell swoop, Alabama Shakes demanded their roots-rock style be heard. In a grassroots movement as organic as the bluesy musicians themselves, Alabama Shakes have captivated a fan base that launched them into a mainstream audience. Speaking of power, attention needs to be paid to lead singer Brittany Howard's raspy pipes. You will feel every word she belts. -- Maggie Malach