"Dancing Crazy" is a song by American recording artist Miranda Cosgrove. It was co-written by Avril Lavigne, Max Martin and Shellback and was produced by Martin and Shellback for Cosgrove's second extended play (EP) High Maintenance, released on March 15, 2011. The song made its premiere on December 15, 2010, before being released digitally on December 21, 2010 as the lead single from the EP. A mid-tempo pop rock track, the lyrics of the song deal mainly with Cosgrove and her friends just going out, partying, and having a good time with one another.

The song has been met with negative reviews from critics. In the United States, the single has charted on the Billboard Hot 100, peaking at number 100. Also, it has peaked at number thirty-six on the Pop Songs chart, which is based on pop radio airplay. It is also her first single to chart on the Billboard Top Heatseekers chart, where it debuted and peaked at number twenty-one. It was moderately successful in some countries, such as Slovakia, where it debuted at number thirty-five on the official Hot 100 singles chart and peaked at number seventeen. The song's music video debuted on February 13, at 6:25 pm. The video features Cosgrove and her friends sneaking out and going to a party that is taking place on a high school football field. While there, Cosgrove is seen flirting with her love interest, as well as dancing on the hood of a car with several other teenagers dancing around her.

In October 2010, Cosgrove announced a few tour dates for the previously-known Sparks Fly Tour, in support of her debut full-length studio album of the same name. Later, the new leg was renamed to the Dancing Crazy Tour, named after her new single "Dancing Crazy". Rumors of a new album, called Turn It Up: Remixed, later surfaced, with the track-listing showing the remixes and acoustic versions of the songs from her previous album, along with the lead single and in-edit tracks "Sparks Fly", "Lovestruck", and "Turn It Up" (featuring Rivers Cuomo). The rumors were later denied, on January 3, 2011, as it was revealed that her new work would not be a full-length remix or studio album, but an extended play instead. Eight days later, Cosgrove herself tweeted a picture from the photoshoot of the EP. "Dancing Crazy" was released to online digital download websites, such as iTunes and Amazon, on December 21, 2010.

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