Photos: Oprah Winfrey, Neil Patrick Harris, Nicole Kidman rehearse at the Dolby Theater for Oscars 2015

Marion Cotillard is seen on stage during rehearsals for the 87th Academy Awards in Los Angeles, Saturday, Feb. 21, 2015.

Rita Ora, left, and Dakota Johnson speak with each other backstage during rehearsals for the 87th Academy Awards in Los Angeles, Friday, Feb. 20, 2015.

Channing Tatum, right, is seen on stage during rehearsals for the 87th Academy Awards in Los Angeles, Saturday, Feb. 21, 2015.

Tim McGraw performs during rehearsals for the 87th Academy Awards in Los Angeles, Friday, Feb. 20, 2015.

Jared Leto is seen on stage during rehearsals for the 87th Academy Awards in Los Angeles, Saturday, Feb. 21, 2015.

Chris Evans is seen on stage during rehearsals for the 87th Academy Awards in Los Angeles, Saturday, Feb. 21, 2015.

Actor Miles Teller, left, is seen during rehearsals for the 87th Academy Awards in Los Angeles, Wednesday, Feb. 18, 2015.

Actress Scarlett Johansson, right, is seen during rehearsals for the 87th Academy Awards in Los Angeles, Thursday, Feb. 19, 2015.

Oprah Winfrey, left, and Neil Patrick Harris are seen during rehearsals for the 87th Academy Awards in Los Angeles, Saturday, Feb. 21, 2015.

Nicole Kidman is seen backstage during rehearsals for the 87th Academy Awards in Los Angeles, Saturday, Feb. 21, 2015.

Actress Kerry Washington, left, is seen during rehearsals for the 87th Academy Awards in Los Angeles, Wednesday, Feb. 18, 2015.

A pair of prop Oscars are seen during rehearsals for the 87th Academy Awards in Los Angeles, Wednesday, Feb. 18, 2015.

Oprah Winfrey, left, Gayle King, center, and Neil Patrick Harris are seen during rehearsals for the 87th Academy Awards in Los Angeles, Saturday, Feb. 21, 2015. The Academy Awards will be held at the Dolby Theatre on Sunday, Feb. 22.