They won’t be dancing in the streets, but they will be prancing down the side of Los Angeles City Hall.

In a dress rehearsal of Hollywood proportions, BANDALOOP Aerial Dancers paraded up high on the facade of City Hall Monday to the delight of passing pedestrians and drivers.

They were preparing for Tuesday’s big ceremony when Mayor Eric Garcetti officially declares April 25 “La La Land” Day in L.A.

The mayor will be joined for the festivities by the film’s Oscar-winning director Damien Chazelle, its Oscar-winning composer Justin Hurwitz, Oscar-winning production designers David Wasco and Sandy Reynolds-Wasco and choreographer Mandy Moore.

The movie-musical about an aspiring actress and a jazz musician struggling to make it in the City of Angels stars Ryan Gosling and Emma Stone, who waltzed away with an Academy Award for her performance in the film.

In a bit of carefully orchestrated timing, “La La Land” will be released on DVD and Blu-ray Tuesday.

The celebration begins on the steps of City Hall Tuesday at 8:30 a.m.