Celebrities are showing their support for Los Angeles teachers, who walked off the job Monday, the union’s first strike in 30 years.

After nearly two years of talks, negotiations, talks between officials at the Los Angeles United School District and the United Teachers Los Angeles union broke down Friday over issues of wages, the expansion of charter schools, class sizes and staffing levels. Approximately 30,000 UTLA members, including school nurses and librarians as well as teachers are off the job as of today with about 500,000 students affected. Charter and private schools in L.A. are not affected by the strike.

Among the celebs voicing support for teachers are Halloween star Jamie Lee Curtis, who tweeted “Standing in support and solidarity with Emily Reyes, another local Los Angelina and proud member of @laschools on strike for a modest wage increase but more importantly, SMALLER CLASS SIZE! Honk in support!”

The walkout struck a personal note for comedian Kathy Griffin. “My sister, who died last year after battling cancer, was a schoolteacher for decades,” Griffen tweeted. “I know how hard she worked to make sure her students were prepared for the world. I stand with #UTLA @UTLAnow!!!

Following below are those tweets and others, including Ike Barinholtz, Rachel Bloom, Fortune Feimster and Marlee Matlin ,among many more.