The 91st Academy Awards are scheduled to air live out of Hollywood, California this Sunday night and word has just broke out that Kendrick Lamar and SZA will not be performing their Oscar nominated song, “All the Stars.”

According to Variety, an Academy source confirmed to the publication that “the song will not be performed by another act,” either. “All the Stars” is the brake out track from Black Panther‘s original soundtrack which was also curated entirely by Lamar himself. The source went on to state Lamar and SZA’s absence is also due to “logistics and timing.”

Other songs nominated in the Best Original Song category include A Star Is Born’s “Shallow,” The Ballad of Buster Scruggs’ “When a Cowboy Trades His Spurs for Wings,” Mary Poppins Returns’ “The Place Where Lost Things Go,” and RBG’s “I’ll Fight;” all four songs will see performances come Sunday’s airing. Other musical acts taking the stage that night are Queen alongside Adam Lambert.

Lamar was also not present during the recent GRAMMY Awards held earlier this month. “All the Stars” was nominated for four GRAMMYs including Song and Record of the Year, while the Black Panther soundtrack was nominated for Best Score Soundtrack for Visual Media.

In related news, Kendrick Lamar may be dropping an album in 2019.