The Nightcrawler star will play the nerdy, lovestruck florist Seymour in this summer’s three-performance concert revival of Little Shop Of Horrors, the musical adaption of the 1960 Roger Corman sorta-horror flick that put composer Alan Menken and the late lyricist Howard Ashman on the map. Gyllenhaal just concluded a sold-out Broadway run opposite Ruth Wilson in Constellations and will be making his musical-theater debut in the show. He’ll be joined by Chuck Cooper as the increasingly insatiable plant (“Feed me!”) and Saturday Night Live‘s Tarran Killam as the psycho-dentist boyfriend of previously announced star Ellen Greene. The show is presented as part of New York City Center’s “Encores! Off-Center” summer series.

PUSHING DAISIESThe musical (and 1986 movie) will run July 1-2 at the Midtown West venue. Dick Scanlan directs, with choreography by Patricia Wilcox.

Little Shop, powered by an infectious pastiche score running the gamut from blues to rock to torchy ballads, premiered at the tiny WPA Theatre off-off Broadway in 1982 before moving to the Orpheum Theatre in the East Village off-Broadway, where it ran for 2,209 performances. A Broadway run in 2003 played 372 performances at the Virginia Theatre. Menken and Ashman would go on to write the scores for Disney’s Beauty And The Beast, The Little Mermaid and much of Aladdin before Ashman died of complications from AIDS in 1991 at age 40.