"Hello Kitty" is a song by Canadian singer-songwriter Avril Lavigne, taken from her self-titled fifth studio album, Avril Lavigne (2013). The song was released as a Japan-only fourth single. It was written by Lavigne, Chad Kroeger, David Hodges and Martin Johnson. Production was handled by Kroeger and Hodges, with additional production by Brandon Paddock and Kyle Moorman. Musically, "Hello Kitty" is a J-pop, dubstep, and EDM song, featuring an electro-influenced drop. The song was influenced by her obsession with all things related to the Japanese brand Hello Kitty, and has some sexual content.

The song was mostly panned by music critics, who criticized its sound and called it immature, while a few critics praised the song saying it is unique and playful. Lavigne shot a music video for the track in Japan and was released on 21 April 2014. It was met with negative reviews by critics, with Billboard labeling it "abhorrent" and "lazy". The video's depiction of Japanese culture was accused of being racist and offensive by some. Due to the video's popularity, the song charted at number 75 on the Billboard Hot 100 chart, becoming the second highest charting single from the album.

Three months after the release of Goodbye Lullaby (2011), Lavigne announced that work on her fifth studio album had already begun, having eight songs written. Lavigne stated that the album would musically be the opposite of Goodbye Lullaby, with a release date rumoured for sometime in 2012. Lavigne explained, "Goodbye Lullaby was more mellow, [but] the next one will be pop and more fun again. I already have a song that I know is going to be a single, I just need to re-record it!." In an interview, Lavigne said about her collaboration with Kroeger: "I have a song called Hello Kitty, which I wrote about Hello Kitty because I'm obsessed, and it's a really fun thing that I've never done before. It kind of has a kind of glitchy, electronic feel to it and it's... the only one on the record that sounds like that. It's really different and a lot of my friends I've played it for really like it. I'm having a lot of fun with that one."

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