1. Mac Lethal Rides 'Pancake Rap' to Big Social 50 Debut

    December 08, 2011 9:45 PM EST Rapper Mac Lethal debuts on the Social 50 chart at No. 31 after launching two viral memes -- the "Pancake Rap" and "Texts From Bennett" -- on Nov. 30. The first, a video of him rhyming over the beat of Chris Brown's single "Look At Me Now" while cooking…