Ken Jeong From “The Hangover” Stars in a PSA About Doing CPR to the Beat of “Stayin’ Alive” [VIDEO]

First, a guy collapses playing charades.  Then two blonde models show up in T-shirts that say "Call 9-1-1" and "Push Hard and Fast."  And after they start doing CPR, Ken Jeong shows up wearing John Travolta's suit from "Saturday Night Fever".

Did you learn anything?