Vampire Weekend’s Ezra Koenig will join Karen O for her upcoming performance at the 86th Annual Academy Awards, which will take place tomorrow at the Dolby Theatre in Los Angeles. Koenig will play acoustic guitar during O’s rendition of “The Moon Song” from Spike Jonze’s Best Picture-nominated film Her. The tune is one of fours songs that have been nominated for the “Best Original Song award.

Other Best Original song nominees include Pharrell’s “Happy” from Despicable Me 2, U2’s “Originary Love” from Mandela: Long Walk to Freedom and Idina Mezel’s “Let It Go” from Frozen.

The 86th Annual Academy Awards broadcast will begin tomorrow at 7pm ET on ABC. The show will be hosted by Ellen DeGeneres.