A new concert piece about slain gay rights leader Harvey Milk by Tony Award-nominee Andrew Lippa will have its world premiere in June in San Francisco.

”I Am Harvey Milk” part choral, part theatre will be performed June 27-28 as part of the San Francisco Gay Men’s Chorus 35th Anniversary Celebration concert.

The 300-member chorus will be joined by Tony-winner Laura Benanti.

Lipa, who wrote the music and lyrics for Broadway’s ”The Addams Family” and the upcoming ”Big Fish,” will play Milk, who became one of the first openly gay men elected to public office in the U-S when he won a seat on the San Francisco board of supervisors in 1977.

He was assassinated a year later.

His life became the subject of the 2008 Oscar-winning film “Milk.”