The Malibu Art Association will hold “Montmartre in Malibu,” an informal plein aire show, on the grassy area of the Adamson House on May 9 during the Mother’s Day Tea from 10 a.m. to 3 p.m. To help celebrate Mother’s Day, the members of the association will demonstrate techniques and display their art. Some art will be for sale; 15 percent of the artwork sales will be donated to the Malibu High School Scholarship Fund. The public is invited.