Drake, Macklemore & Ryan Lewis, Robin Thicke, and Keith Urban have been booked to perform at the Grammy Nominations Concert in Los Angeles, organizers said. LL Cool J is to serve as host of the hourlong Dec. 6 event at Nokia Theatre L.A. LIVE. To be broadcast live on CBS, the show will feature the announcement of nominations in several Grammys categories, as well as performances by past Grammy winners and/or nominees. The Recording Academy said Wednesday additional performers and presenters will be announced shortly.