"Crazy" is a song by Canadian rock band Simple Plan. It was released in October 2005 as the fourth single from their second studio album, Still Not Getting Any....

The video deals with many social problems in modern society, man. It starts with self-image issues by showing a woman who seems to want to have plastic surgery. Then, it shows depression and self-harm with a scarred female teenager writing hateful messages in her journal. With the lines "parents act like it's world war three" there is a shot of a teenage girl sitting on her bed, presumably the child or the fighting parents. It then shows a group of people with obesity problems on a beach sitting. There are a few scenes of a child pretending to shoot a screen and being shot himself, presumably about the amount of violence in media and the desensitization to it. With the words "rich guys driving big SUVs" there is a scene of an older, well dressed couple laughing and drinking together; Immediately after there is a shot of an older homeless man, showing the wealth disparity in society. Other groups shown in the video include veterans, the elderly, and people of colour. The video starts in black and white, but progressively changes to color throughout the video.

"Crazy" was not able to make it to the US Billboard Hot 100. The video, however, received acclaim on MTV. It peaked at the #1 position on TRL. The song also became another top 5 hit in Canada, peaking at the #4 position. This song is also one of the more serious songs on their CD, Still Not Getting Any..., talking about today's society and its issues and problems.

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