Kat Valdez (Jennifer Lopez) is half of the sexiest celebrity power couple on Earth with hot new music supernova Bastian. As Kat and Bastian's inescapable hit single, "Marry Me," climbs the charts, they are about to be wed before an audience of their fans in a ceremony that will stream across multiple platforms. Divorced high-school math teacher Charlie Gilbert has been dragged to the concert by his daughter Lou and his best friend Parker Debbs. When Kat learns, seconds before the ceremony, that Bastian has cheated on her with her assistant, her life turns left as she has a meltdown on stage, questioning love, truth, and loyalty. As her gossamer world falls away, she locks eyes with a stranger-a face in the crowd. If what you know lets you down, then perhaps what you don't know is the answer, and so, in a moment of inspired insanity, Kat chooses to marry Charlie. What begins as an impulsive reaction evolves into an unexpected romance. But as forces conspire to separate them, the universal question arises: Can two people from such different worlds bridge the gulf between them and build a place where they both belong?

Times Square, Manhattan.   Times Square is a major commercial intersection, at the junction of Broadway and Seventh Avenue and stretching from West 42nd to West 47th Street.

Vanderbilt Avenue and Greene Avenue, Brooklyn.

Loughlin Memorial High School, 357 Clermont Avenue and Greene Avenue, Brooklyn.

Kat's Apartment, 252 East 57th Street Condominium and 2nd Avenue, Manhattan.

Manhattan Center, 311 West 34th Street (Btw 8th and 9th Avenues) Manhattan.   Scene took place inside the Hammerstein Ballroom of the Manhattan Center.

Jumeirah Essex House, 160 Central Park South (Btw 6th and 7th Avenues) Manhattan.

The Plaza Hotel, 750 5th Avenue and Central Park South, Manhattan.

Rooftop Car Park, 711 11th Avenue and West 51st Street, Manhattan.

Lucky Strike, 660 West 42nd Street and 12th Avenue, Manhattan.

Van Brunt Street (Btw Coffey Street and Dikeman Street) Brooklyn.

The New Yorker Hotel, 311 West 34th Street and 8th Avenue, Manhattan.

Vanderbilt Avenue and Greene Avenue, Brooklyn, NY

Wonder Wheel, Coney Island, New York.

Madison Square Garden, 4 Pennsylvania Plaza (8th Avenue & 33rd Street) Manhattan.

NBC Studios, 30 Rockefeller Plaza and West 50th Street, Manhattan.   The Tonight Show host Jimmy Fallon makes a guest appearance in the film as he interviews the two main characters.