Ne-Yo and fun. have joined the roster of performers for the upcoming Grammy Nominations Concert Live! in Nashville, producers said Tuesday. The acts join previously announced performers Luke Bryan and Maroon 5. LL Cool J and Taylor Swift will serve as co-hosts of the one-hour concert special, which is to air on CBS Dec. 5. The show is to take place at Bridgestone Arena in Nashville. In addition to the announcement of Grammy Awards nominations, the program will also feature performances by past Grammy Award winners and/or nominees. Additional performers and presenters will be announced shortly, CBS said.