"Blow" is a song by American recording artist Beyoncé for her fifth studio album Beyoncé (2013). It was written by Beyoncé, Pharrell Williams, James Fauntleroy, Timbaland, J-Roc and Justin Timberlake, and produced by the former two. It was set to be released as one of the lead singles following the release of the album along with "Drunk in Love", however, its release was scrapped in favor of "XO".

"Blow" is a disco-influenced R&B and funk song which has several other musical influences and elements featured in it. It received comparison to songs from the 1970s and 1980s mostly by Prince and Janet Jackson. Lyrically it talks explicitly about oral sex and cunnilingus through heavy innuendo in line with Beyoncé's sexual tone. Following its release, it received positive reviews by music critics who hailed it as one of the most explicit and best songs on the album. Its variety of musical genres and production were also praised as well as Beyoncé's vocal performance. Due to several promotional remixes of the song, "Blow" managed to peak at number one on the US Billboard Hot Dance Club Songs chart without an official release as a single.

The music video for the song was directed by Hype Williams and was released on the album on December 13, 2013. It was filmed at a roller skating rink in Houston and it features Beyoncé's sister Solange Knowles, her background dancers and her female band. The singer's style received comparisons to 1980s fashion and music videos in a similar way to the song itself. In 2014, "Blow" was included on the set list of the European leg of Beyoncé's The Mrs. Carter Show World Tour. It was also performed during the 2014 MTV Video Music Awards as part of a medley of Beyoncé's self-titled album.[1]