"Ching-a-Ling" is a song by Missy Elliott, and is the lead single for the Step Up 2 the Streets soundtrack. It was also supposed to appear on Elliott's seventh studio album, Block Party. The song premiered on both Elliott's MySpace and official website on January 10, 2008. Within a week, it had debuted on the U.S. Billboard Hot R&B/Hip-Hop Songs chart. The song was made available for download on iTunes as of January 22, 2008. In the song, sound elements of the 1981 arcade game Donkey Kong are heard throughout the song. The song was number 69 on Rolling Stone's list of the 100 Best Songs of 2008.

It was directed by Dave Meyers and has a combination of "Ching-a-Ling" and "Shake Your Pom Pom". It is credited as the first ever 3D music video. However, the real first 3D music video, "Nastradamus" by Nas, was made almost 10 years earlier. The video guest-stars the famous Japanese hip hop dance group U-Min known for their slow motion dancing and popping. The music video was shot in Los Angeles, California in January 2008. It was styled by stylist Misa Hylton. The video premiered on MTV's TRL and BET's 106 & Park on February 4, 2008. It was released on the UK iTunes before showing on any UK music channel.

The "Ching-a-Ling" portion of the music video is set primarily with a white backdrop featuring Elliott and various background dancers, such as U-Min. Other shots are interspersed throughout the video which relate to the lyrics, such as Elliott swinging on a rope swing in an Autumn setting, and playing a DDR-esque game which uses the letters of Ching-A-Ling instead of arrows.

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