Day 'n' Nite

"Day 'n' Nite" (listed as "Day 'n' Nite (Nightmare)" on the tracklist of Man on the Moon: The End of Day) is a song by American alternative hip hop recording artist Kid Cudi. The song was written and produced by Dot da Genius and Kid Cudi. It was released on February 5, 2008 as Cudi's debut single, but had leaked in December 2007, and was featured on several blogs in mid-November 2008. The single serves as the lead single from his debut studio album Man on the Moon: The End of Day (2009). The song has so far sold over 2,000,000 digital downloads in the United States. In 2012, in an interview with Complex Magazine, Kid Cudi revealed that "Mind Playing Tricks on Me" by The Geto Boys inspired him to write and record "Day 'n' Nite", saying: "My Mind Playing Tricks On Me is my favorite song in the world. I love it so much I wanted to make my own version of it. And then 'Day 'N' Nite' came out of it." The song peaked at number 3 on the U.S. Billboard Hot 100. It was ranked number 8 on complex.com best songs of the decade. It was also was ranked number 15 on the Best 25 Songs of 2009 list by Rolling Stone.

The song was remixed in June 2008 by Italian production duo Crookers, titled "Day 'n' Nite (Crookers Remix)" and was released as a single in the UK on January 12, 2009. The Crookers Remix was a commercial success, peaking at number 2 on the UK Singles Chart and entering within the top 20 in various European charts.