"Rush" is a pop rock song recorded by American pop rock duo Aly & AJ for their debut album Into the Rush. The track was released as their first official single nationwide by their label Hollywood Records. It was first released to Radio Disney on October 14, 2005 to promote the Disney Channel Original Movie Twitches, but later grew to become extremely popular, which led to a mainstream release on February 25, 2006. It was later released for digital download on July 11, 2006 and on November 25, 2006 in Australia.

"Rush" is moderate pop rock song in a key of D minor. The song is also featured on the soundtrack to the Bratz: Rock Angelz video game (as "Into the Rush") and in the Disney Channel Original Movie Twitches.

There are two different versions of the video. The first version, released by Disney only, featured Aly & AJ performing the song live in concert and scenes from Twitches.
The second version was directed by Marc Webb and premiered on February 15, 2006. It was shot in Hawaii and portrays the sisters traveling to five different locations: a beach, a campsite, a jungle, a bazaar and a music store. One of the locations that was filmed is known as Jackass Gingers which is a popular local swimming spot on the island of Oahu.

"Rush" is Aly & AJ's first single that was a commercial success in the United States. When it was initially released, it was able to chart on Billboard's Pop 100 and Hot Digital Songs. The following February, when it was re-released, it managed to make it on the Billboard Hot 100, peaking at number 59 and staying on the chart for a total of 11 weeks. To date the single has reached over 900,000 digital downloads. The music video for the song debuted at number two on MTV's Total Request Live, remaining on it for eight non-consecutive weeks.

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