Nahum Thorton Grymes (born November 29, 1984), better known by his stage name J. Holiday, is an American singer, songwriter, rapper, and actor. He came into prominence in 2007 with his breakthrough hit "Bed", peaking at number five on the US Billboard Hot 100. His debut album, Back of My Lac', was released in October 2007 and peaked at number 5 on the US Billboard 200. The album would also hit number 32 in the United Kingdom. Back of My Lac' has sold just over 700,000 copies worldwide.