I thought Justin sold more? Dookie?
And LOL @ people having meltdowns because their faves were grossly overshipped.
Mediatraffic's weekly charts are dated about 2 weeks after the actual sales weeks so the last 2 weeks of 2012 are included in 2013's chart and the last 2 weeks of 2013 will be included in this year's year-end chart. It's not rocket science, people.