« Pursuit of Happiness » (listed as « Pursuit of Happiness (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, released January 25, 2010, as the third single from his debut studio album Man on the Moon: The End of Day. The song was produced by Ratatat and features vocals from neo-psychedelic act MGMT.