"Chelsea" is the debut song recorded by American pop rock band Stefy. It was released as the lead single from their debut album, The Orange Album (2006). It was sent to mainstream radio in June 2006 and was made available as a CD single and digital download by Wind-up Records on July 18. The song features a melody that is similar to The Eurythmics' "Sweet Dreams (Are Made of This)".

"Chelsea" was written by Jimmy Harry, Greg Kurstin and Stefy Rae, while production was handled by Harry. The song received mixed reviews from music critics, who favorably compared it to the works of Gwen Stefani and Blondie, but found it to be a "weak" debut single. The song was moderately successful after its release, peaking at number 15 on the Billboard Hot Dance Club Play, and playing a prominent role in the video game 2006 FIFA World Cup (2006).

"Chelsea" was written and produced during recording sessions in Los Angeles, California at 320 Studios and Bombshelter Studios. Sessions for Stefy's debut album, The Orange Album, began when lead singer Stefy Rae was "look[ing] for [a] sense of uniqueness" in the music industry. Rae stated that she was inspired to write "Chelsea" after another woman stole her boyfriend.

The single was written by Stefy lead singer Stefy Rae, Greg Kurstin, and Jimmy Harry, while production was handled solely by Harry. The track was released in 2006 as a CD single and digital download by Wind-up Records. The CD single version of "Chelsea" came with B-side track "Cover Up". The single was later issued to mainstream radio in June 2006, where it received modest success and significant airplay, charting on the Billboard Hot Dance Club Play for nine consecutive weeks.

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