The Academy has announced that Cynthia Erivo, Elton John, Idina Menzel, Chrissy Metz and Randy Newman will perform their Oscar-nominated songs at next month's ceremony. Because the Oscars are going without a host once again, there's a little bit more time for the awards show to indulge musical performances. In fact, Questlove is set to make a special appearance, and there will also be a guest-conducted segment by Eímear Noone, who will become the first woman to conduct during an Oscars telecast. [caption id="attachment_759085" align="alignright" width="360"] Image via Focus Features[/caption] “We’…