"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.