Katy Perry, Lena Dunham and Rebel Wilson are among A-listers calling for stricter gun control.

Following the tragic theater shooting in Lafayette, Louisiana Thursday night, members of Hollywood took to social media to voice their opinions on gun control in the United States.

Katy Perry, Lena Dunham and Rebel Wilson are among A-listers calling for stricter gun control following the Louisiana theater shooting where 59-year-old gunman John Russell Houser killed three people, including himself, and injured nine others during a screening of Trainwreck.

Read the social media posts below.

Do we all personally hv to lose someone from a gun to hv a real opinion on gun control or can we just literally start taking this SERIOUSLY.

— KATY PERRY (@katyperry) July 24, 2015

Let's never become numb to this ceaseless gun violence. It cannot be our norm. Love to all in Louisiana.

— Lena Dunham (@lenadunham) July 24, 2015

If you say 'Unfollow' after I post about Sandra Bland or gun control, I didn't want you here in the first place

— Lena Dunham (@lenadunham) July 24, 2015

I don't like getting political but America you really have to follow Australia's example re gun laws.

— Rebel Wilson (@RebelWilson) July 24, 2015

I don't remember a mass shooting in Australia since they overhauled the gun laws. It seems like every week in America there's a shooting.

— Rebel Wilson (@RebelWilson) July 24, 2015

I just want people to be safe, especially people that are doing one of my favorite things in the WORLD - going out to the movies 2 have fun.

— Rebel Wilson (@RebelWilson) July 24, 2015

Please. No more guns. Please. Churchgoers, school children, moviegoers...how many more innocent people have to die before we change?

— Jenna Fischer (@jennafischer) July 24, 2015

Ok? Can we stop blaming our "content" and focus on mental health and gun availability? Prayers to Lafayette....#heartbreaking

— Willie Garson (@WillieGarson) July 24, 2015

Another mass shooting in America. Another chance for America to do absolutely nothing to stop more mass shootings. http://t.co/3GqB6PUJxz

— Piers Morgan (@piersmorgan) July 24, 2015

Less than 100 people in America killed by terrorists since 9/11. 448,000 killed by guns in same period.

— Piers Morgan (@piersmorgan) July 24, 2015

#Lafayette, #Chattanooga, #Charleston. Heartbreaking...too much. Too many guns too easily gotten by psychos.

— Jeffrey Wright (@jfreewright) July 24, 2015

Bobby Jindal on the scene in #Lafayette attempting "Presidential," proclaiming "evil" & calling for prayer...but never tougher gun laws.

— Jeffrey Wright (@jfreewright) July 24, 2015

More to come...