On Monday, August 11, the world lost one of its most loved comedians and most talented artists - Robin Williams. With over four decades in Hollywood under his belt, it's undeniable that he left his mark on pop culture forever. 

In his less publicized role as an advocate for the issues most near and dear to him, including the arts, Williams partnered with the National Cultural Alliance (NCA) - an organization that Americans for the Arts' current CEO and President, Bob Lynch, co-founded in the 1980s - doing a couple hours of adlib commentary on the value of the arts which were then crafted into public service announcements. “It was hilarious, amazing, and very generous of him to donate his time and talent probono," Bob Lynch said in reference to his work with NCA.

President Obama released a statement last night about Williams passing:

"Robin Williams was an airman, a doctor, a genie, a nanny, a president, a professor, a bangarang Peter Pan, and everything in between. But he was one of a kind. He arrived in our lives as an alien -- but he ended up touching every element of the human spirit. He made us laugh. He made us cry. He gave his immeasurable talent freely and generously to those who needed it most -- from our troops stationed abroad to the marginalized on our own streets."

Our condolences are with Robin Williams family and friends, and we'll always remember him at Americans for the Arts for his enormous talent and his generous heart.

To read more, check out the link to the CNN article below, or USA Today’s many articles and photo slideshow. Radar Online did another slideshow of young photos of the actor.

You can also share your own memories of Robin Williams at CNN's iReport Memoriam here.