Salma Hayek: How She Pulled Off a Cannes Mariachi Stunt

It took a determined Salma Hayek just a few hours to coordinate a Mexican sing-along surprise to close the May 23 Cannes 70th anniversary gala dinner. With more than 100 stars in attendance (Leonardo DiCaprio, jury members Will Smith and Jessica Chastain, past Palme d’Or winner Jane Campion), the bash already was a memorable one …