It’s been a week since the massacre at Sandy Hook Elementary School has taken place, leaving 20 children dead.  Jennifer Aniston, Reese Witherspoon, Gwyneth Paltrow and Beyonce have joined forces with a number of celebrities to Demand a Plan.  This new PSA  is a grassroots initiative to demand that President Obama and Congress step forward with a plan to end gun violence.

Also taking part in the star studded effort are Michelle Williams, Olivia Munn, Selena Gomez, Paul Rudd, Will Ferrell, Sarah Silverman, Ellen DeGeneres, Julianne Moore, Chris Rock, Jamie Foxx, Jon Hamm, Jennifer Westfeldt, Amy Poehler, Adam Scott, Rashida Jones, Kate Hudson, Cameron Diaz, John Slattery, Jeremy Renner, Conan O’Brien and more.

Check out the video on page 2.