Paris Christmas | Léa Seydoux Switches On Champs-Élysées Christmas Lights

French actress Léa Seydoux, along with Paris Mayor Anne Hidalgo and two children from the Les Petits Princes association, officially launched the festive season on Sunday by switching on the Christmas lights on the Champs-Élysées. Thousands gathered to witness the illumination of the famous central Paris avenue, which features a new sound-and-light show using programmable LED technology this year. The event, which was closed by a performance from Canadian singer Charlotte Cardin, marks the start of the holiday lights display that will run until January 5.