I have to agree with Pitchfork:
"If you're half awake get ready to be wide awake. "Tell 'Em" is the first track from 2010's promising purveyors of all things loud and pop, Sleigh Bells. Fair warning: This thing will rumble your insides if played at high volumes, i.e. the more of those tiny boxes on your laptop screen are white, the better it sounds."