The lineup of 2016 Grammys performers just got more stacked. It was announced that Robin Thicke, Pitbull and Travis Barker will perform together, with a few yet-to-be-announced surprise guests. The Grammys air Feb. 15 on CBS. Billboard cover star Kendrick Lamar leads the pack with 11 nominations, all of which he aims to win with 5 nominations by Pharrell.