A representative for the Academy of Motion Picture Arts and Sciences has spoken out about the notable absences during the “In Memoriam” tributes at this year’s Oscars.

During Sunday night’s Academy Awards, organisers took a moment to honour those from the film industry who had died in the last 12 months, accompanied by a live performance of The Beatles’ Yesterday by Billie Eilish.

However, shortly after the performance, many noticed there were a couple of stars who had been missed off the list, namely Luke Perry and former Disney star Cameron Boyce.

The Academy has now responded to the stars’ absences, claiming not only that leaving them out was deliberate, but that it was done due to time constraints.

“[We receive] hundreds of requests to include loved ones and industry colleagues in the Oscars ‘In Memoriam’ segment,” they said.

“An executive committee representing every branch considers the list and makes selections for the telecast based on limited available time. All the submissions are included on Oscar.com.”

Both Cameron and Luke are featured on the extended list of tributes on the Oscars’ website, as are long-time Sesame Street cast member Caroll Spinney, Bonnie & Clyde actor Michael J. Pollard and horror star Sid Haig, who were all left out of the tributes in the live broadcast.

Luke Perry’s absence was particularly surprising, as his final on-screen role was a small part in Once Upon A Time In Hollywood, which was nominated for 10 Oscars this year, including Best Picture.

Check out the full list of winners from this year’s Oscars here.

MORE OSCARS:

Keanu Reeves Brought His Mum To The Oscars, Wins Best Son

Derry Girls' Nicola Coughlan Had A Night At The Oscars And We're Absolutely Living For Her Tales

Oscars 2020: Points Have Been Made About Natalie Portman's Red Carpet Fashion Statement

Renée Zellweger

Florence Pugh

Margot Robbie

Billie Eilish

Cynthia Erivo

Saoirse Ronan

Olivia Colman

Brad Pitt

Regina King

Billy Porter

Charlize Theron

Sandra Oh

Timothée Chalamet

Laura Dern

Sigourney Weaver

Rebel Wilson

Natalie Portman

Joaquin Phoenix

Scarlett Johansson

Noah Baumbach and Greta Gerwig

Chrissy Metz

Aurora

Robert De Niro and Al Pacino

Beanie Feldstein

Kaitlyn Dever

Tonya Lewis Lee and Spike Lee

Janelle Monáe

George MacKay

Penelope Cruz

Antonio Banderas

Alison Balsom and Sam Mendes

Kristen Wiig and Gal Gadot

Brie Larson

Adam Driver and Joanne Tucker

Elvira Lind and Oscar Isaac

Love HuffPost? Become a founding member of HuffPost Plus today.

This article originally appeared on HuffPost.