2017 GRAMMYs Performers List: Lady Gaga & Metallica to Duet, Katy Perry Also Joins

Update (2/8): Prince and George Michael tributes have been officially announced for the 59th annual GRAMMY Awards, although no details are available. Here's what Recording Academy president/CEO Neil Portnow had to offer:

"George Michael and Prince were pop icons who showcased rare musical genius and otherworldly charisma. While each possessed a distinct style and sound, they were both adored by audiences worldwide. The passings of two such creative innovators were a huge loss for the creative community; The Recording Academy is humbled to pay homage to their tremendous legacies on the GRAMMY stage."

Update (2/7): Lady Gaga is hitting the GRAMMYs this year as well, in a collaborative performance with Metallica, Rolling Stone reports. The Recording Academy also announced on Tuesday the additions of Kelsea Ballerini, Lukas Graham and Tony-winning actress Cynthia Erivo, who will join John Legend for the In Memoriam segment. A celebration of the Bee Gees—for Saturday Night Fever's 40th anniversary—will come from Demi Lovato, Andra Day and Tori Kelly. Last night, Katy Perry was added.