Film stars who will participate in Friday night's "Canada for Haiti" benefit include Jason Reitman, Ryan Reynolds, William Shatner, Rachelle Lefevre, Joshua Jackson, Pamela Anderson, Eugene Levy, Norman Jewison, Will Arnett and Sandra Oh.
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Musicians Justin Bieber, Nelly Furtado, Sarah McLachlan, Barenaked Ladies, Simple Plan and David Foster will also participate.
Hockey star Wayne Gretzky and basketball player Steve Nash will be there.
Prime Minister Stephen Harper and Gov. Gen. Michaelle Jean will have special messages for Canadians.