Emma Stone, Jane Curtin join Bill Murray tribute in DC

FILE - In this Dec. 4, 2015, file photo, Bill Murray gestures prior to receiving an award for his contribution to acting, during the 15th Marrakech International Film Festival in Marrakech, Morocco. On Sunday, Oct. 23, 2016, Murray will receive the Mark Twain Prize for American Humor, at the Kennedy Center in Washington. The 66-year-old Murray joins several other "Saturday Night Live" alumni who've received the prize, including Tina Fey, Will Ferrell and last year's winner, Eddie Murphy. (AP Photo/Abdeljalil Bounhar, File)

WASHINGTON (AP) — Emma Stone and Jane Curtin are late additions to the lineup of performers who'll celebrate Bill Murray when he receives the nation's top prize for humor.

The Kennedy Center announced Tuesday that Stone and Curtin will take the stage in honor of Murray on Sunday night. Murray is this year's recipient of the Mark Twain Prize for American Humor.

Curtin performed alongside Murray on "Saturday Night Live." Stone co-starred with him in the little-seen movie "Aloha."

Also new to the lineup are musician Rhiannon Giddens and Ivan Reitman, who directed Murray in "Ghostbusters." Murray's co-star in that movie, Dan Aykroyd, has dropped out of the event. The Kennedy Center says he has a scheduling conflict.

Previously announced performers include David Letterman, Sigourney Weaver and Aziz Ansari.