“Parks & Recreation” co-stars Aziz Ansari and Chris Pratt want you to

“Parks & Recreation” co-stars Aziz Ansari and Chris Pratt want you to “give a s**t about cancer” by getting your friends to join the national bone marrow registry by swabbing their mouths, and they have the funniest way of communicating it.

What a funny PSA! Chris Pratt is really the star of this one—Aziz plays the straight man: