Bradley Cooper, Colman Domingo, Paul Giamatti, Cillian Murphy and Jeffrey Wright are all nominated tonight for the best actor Oscar.

Cooper, who is nominated for his performance as legendary composer Leonard Bernstein in "Maestro," and Paul Giamatti, who is nominated for his performance as a grumpy boarding school professor in "The Holdovers," have received past Oscar nominations.

Domingo, Murphy and Wright, who are being recognized for their respective performances in "Rustin," "Oppenheimer" and "American Fiction," are all first-time Oscar nominees.

Read more about the actors here.

All five songs nominated in the best original song category will be performed during the show.

In February, the Academy announced that Becky G, Ryan Gosling, Billie Eilish and more would take the stage. Becky G will perform Diane Warren's "The Fire Inside" from "Flamin' Hot," while Eilish will sing "What Was I Made For?" from "Barbie," which she co-wrote with her brother, Finneas O'Connell.

Gosling will sing the power ballad "I'm Just Ken" from "Barbie." The song was co-written and co-produced by Mark Ronson and Andrew Wyatt.

Also taking the Oscars stage are Jon Batiste, who will perform "It Never Went Away" from "American Symphony," and Scott George, who will perform "Wahzhazhe (A Song For My People)" from "Killers of the Flower Moon" with the Osage Singers.

Academy Award nominees America Ferrera, Billie Eilish and Finneas O'Connell were all smiles as they posed for photos together on the red carpet.

Ferrera, who is nominated for best supporting actress for her performance in "Barbie," stepped out in a pink gown, while Eilish wore a black blazer with a white button down shirt and a black and white skirt with a matching houndstooth purse. O'Connell wore a classic suit with a black bowtie.

Eilish and O'Connell's song "What Was I Made For?" from "Barbie" is nominated tonight for best original song.

Amid the ongoing Israel-Hamas war, "Anatomy of a Fall" actors Milo Machado-Graner and Swann Arlaud wore Palestinian flag pins on the Oscars red carpet.