Kat Valdez ( Lopez ) is half of the sexiest celebrity power couple on Earth with hot new music supernova Bastian ( Maluma , making his feature-film debut). 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 be streamed across multiple platforms. Divorced high-school math teacher Charlie Gilbert ( Owen Wilson ) has been dragged to the concert by his daughter Lou ( Chloe Coleman , Big Little Lies) and his best friend ( Sarah Silverman ). 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 ...