"Lean On" is a song recorded by American electronic music group Major Lazer and French producer DJ Snake, taken from the former's third studio album, Peace Is the Mission (2015), featuring vocals from Danish singer MØ. It was produced by Major Lazer and DJ Snake, and written by MØ, Major Lazer member Diplo, and DJ Snake. "Lean On" was released through Mad Decent independently (Because Music for Europe, WMG for Australia) as the lead single from the album on March 2, 2015. It is a dance and electronic song being also described as a house ballad.
"Lean On" was a critical and commercial success, peaking at number four on the US Billboard Hot 100 and at number two on the UK Singles Chart. It reached number one in several other countries including Australia, Ireland, the Netherlands, Mexico, New Zealand, Finland, Denmark and Switzerland. In November 2015, "Lean On" was named by Spotify as the most streamed song of all time, and has over 892 million streams globally as of November 2016; however it has since been overtaken by Drake's single "One Dance". The accompanying music video for "Lean On" was filmed in ND Studios, Karjat (India), Kaul Heritage City, Vasai in Maharashtra (India). The video premiered on March 23, 2015 and has over 1.82 billion views on YouTube as of January 8, 2017. According to IFPI, "Lean On" was the fifth best selling song of 2015 worldwide, and one of the best-selling singles of all time, with global sales of 13.1 million.
Regarding the creative process behind "Lean On", producer Diplo said, "We wrote this song with MØ very early from an instrumental Jr. Blender created in some sessions in Trinidad. It was a strong hook. Very big to me but the production was lacking an attitude we needed. A year later I remixed the song at a completely different tempo and asked DJ Snake for a signature post chorus. After he did his thing, me, MØ and Blender rewrote the song at the new tempo in Las Vegas and made something very unique that became our album's lead-off single. We're super proud of this song." Diplo offered a slower reggae arrangement of the song to Rihanna, who rejected it. He also offered said arrangement of the song to Nicki Minaj, who turned it down as well. Diplo called this turn of events "a blessing in disguise. MØ sounds better than anybody was going to sound on that record."