Actress/singer Kristin Chenoweth has been added to the list of performers at Sunday's (24Feb13) Oscars - she'll end the show by performing a song-and-dance routine with host Seth Macfarlane.

As the stars make their way to the exits at the Dolby Theater in Hollywood, Chenoweth and MACFarlane will serenade them with a special show-closing musical performance.

Oscars producer Craig Zadan says, "After the Best Picture award has been given, Seth and Kristin will perform a special number and we think it will be a 'can't miss' moment."

Chenoweth joins a stellar list of previously announced performers including Jennifer Hudson, Catherine Zeta-Jones, Hugh Jackman, Russell Crowe, Anne Hathaway, Amanda Seyfried, Eddie Redmayne, Samantha Barks, Adele, Dame Shirley Bassey, Norah Jones and Barbra Streisand.