"Let's Go" is a song written and performed by Scottish DJ Calvin Harris, featuring vocals from American singer Ne-Yo. The track was released in the United Kingdom on 30 March 2012 as the third single from Harris' third studio album, 18 Months (2012). On 29 April 2012, precisely a week after its release, "Let's Go" debuted at number two on the UK Singles Chart for the week ending dated 5 May 2012— marking Harris' third consecutive number two hit. As of July 2012, the song has sold 376,000 downloads in the United States. It also appeared on the deluxe version of Ne-Yo's fifth studio album, R.E.D. The song received a nomination for Best Dance Recording at the 55th Grammy Awards held in February 2013.

Adam Richard Wiles, known professionally as Calvin Harris, is a Scottish DJ, record producer, singer, and songwriter. His debut studio album, I Created Disco, was released in June 2007. Its singles "Acceptable in the 80s" and "The Girls" both reached the top 10 in the UK. In 2009, he released his second studio album, Ready for the Weekend, which debuted at number one on the UK Albums Chart and whose lead single, "I'm Not Alone", became his first song to top the UK Singles Chart.