You've probably seen this video ad approved by John McCain aimed to make fun of Barack Obama whom he pictures as international celebrity:
The video uses pictures of Paris Hilton and Britney Spears who are known socialites and "international celebrities" often ridiculed for their behavior.
Paris Hilton has just responded with her own video ad to return John McCain a favor. The ad was sponsored by Funny or Die and is quite awesome:
Paris Hilton?s Video Response to John McCain?s Anti Barack Ad