The Voice Season 6 (USA) : Christina Grimmie's Stunning 'How To Love' Performance. Christina Grimmie yet again ended the night with an amazing performance of 'How to Love' by Lil Wayne and she as usual made it her own. dam was mesmerized by her vocal ability. Blake told Christina, "You look and sound like a superstar." Shakira was floored with how much artistry Christina had.