LOS ANGELES — Demi Lovato performed at the Grammys on Monday night and she totally killed it.With kindred vocalists John Legend, Meghan Trainor, Tyrese and Luke Bryan, Lovato paid tribute to incredible artist Lionel Richie. Every performer sang part of a variety consolidating Richie’s “Easy Like Sunday Morning,” “Penny Lover,” “You Are,” “Hello,” and “Brick House.” He later went along with them in front of an audience for an interpretation of “All Night Long (All Night).”Lovato didn’t think twice of “Hello,” with her dazzling vocals. She looked as certain as always wearing a diving white overcoat and dark pants.At the point when the camera panned over to Richie he was chiming in with the heartfealt song and looked just as he were in wonderment of Lovato’s ability.