"Hot" is a song by Canadian singer-songwriter Avril Lavigne, taken as the third single from her third studio album, The Best Damn Thing (2007). The song was written by Lavigne and Evan Taubenfeld, while it was produced by Lukasz "Dr. Luke" Gottwald. The pop rock ballad talks about her feelings about a boyfriend, who makes her "hot". The song received positive reviews from music critics, who praised its "old-style" vibe and its anthemic nature. A version of the chorus in Mandarin was released in China and Japan.

Commercially, the song was more successful in Australia, Canada and a few European countries, while it was a commercial disappointment in the United States. Lavigne performed the song at the 2007 MTV Europe Music Awards, American Music Awards, on The Friday Night Project and many more. The music video directed by Matthew Rolston shows Lavigne in a more "sexy" way, with a "1920s burlesque" theme.

After the success of her debut album, Let Go (2002), Lavigne released her second album, Under My Skin (2004), which debuted at number one in more than ten countries, went platinum within one month, and further established Lavigne as a pop icon. Later, a song that was co-written by Lavigne and ultimately cut from the final track list -- "Breakaway"—was later given to Kelly Clarkson, who used it as the title track and lead-off single for her Grammy-winning second album. In July 2006, Lavigne married Sum 41's Deryck Whibley and spent most of the year working on her third album, enlisting blink-182 drummer Travis Barker to play drums, and cherry-picking a variety of producers (including her husband) to helm the recording sessions. Lavigne described the album as "really fast, fun, young, bratty, aggressive, confident, cocky in a playful way."

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