"Blow" is a song by American recording artist and songwriter Kesha from her first extended play (EP), Cannibal (2010). The song was released on February 8, 2011. It was written by Kesha, along with Klas Åhlund, Lukasz Gottwald, Allan Grigg, Benjamin Levin and Max Martin, with production done by Dr. Luke, Max Martin, Benny Blanco and Kool Kojak. According to Kesha the song's lyrics are representative of herself and her fans. "Blow" is dominantly an electropop and dance-pop song and is described as a party anthem as it portrays a simple message of having a desire to have a good time at a club.

Critical reception of "Blow" has been generally positive, with most critics praising the song's hook, opening, and party anthem vibe, though some found the chorus uninspiring and ordinary. Kesha's vocal work throughout the song was met with mixed reaction: some critics felt that she was both sassy and brash, while other critics felt that her personality was missing from the song. Commercially, "Blow" reached the top ten in the Billboard Hot 100 in the United States and Australia, becoming her sixth consecutive top-ten hit in both countries as a solo artist. The song also reached the top ten in New Zealand, and the top 20 in Canadian Hot 100 in Canada.

The song's accompanying music video was directed by Chris Marrs Piliero and was released February 25, 2011. The video co-stars actor James Van Der Beek, who plays Kesha's nemesis. Piliero and Kesha came up with the video's concept and is intended to be simplistic, a video that is cool and random. Reception of the video by critics were positive, with the mid-video dialogue scene's humor being highlighted.

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