This Sunday, the awards show will take place at LA's Crypto.com Arena and we recently found out that all of the Best New Artist nominees will be performing. Now, the Recording Academy has announced the performers for the In Memoriam section. Lauryn Hill will pay tribute to D'Angelo and Roberta Flack, while Post Malone, Andrew Watt, Chad Smith, Duff McKagan, and Slash will perform in honor of Ozzy Osbourne. Today, the Recording Academy also announced that Justin Bieber — who's up for four awards — will be performing. ET on the Recording Academy's YouTube channel and on live.GRAMMY.com.