Over the past several months, we've seen Will Smith accosted by an unusually amorous reporter on the red carpet, Kim Kardashian targeted in a "flour bomb" attack, and Ryan Seacrest covered with the faux ashes of former North Korean ruler Kim Jong-Il in a publicity stunt for Sacha Baron Cohen's "The Dictator."
While the above incidents struck us as bizarre, we're pretty used to seeing celebrities caught off guard on award-show red carpets, onstage at concerts or in other public settings. Here are some memorable occurrences in which stars have been pranked, accosted or generally surprised (pleasantly or unpleasantly).
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