: will.i.am wrote the song in approximately one hour after attending the inauguration of President Obama.
The song's release marked a period of unprecedented chart dominance for the Black Eyed Peas. The Black Eyed Peas - I Gotta Feeling (Official Music Video)
: The song's melody was directly inspired by the U2 song "I'll Go Crazy If I Don't Go Crazy Tonight". Some critics have also noted similarities to the repetitive, warm vocal lines of the Five Stairsteps' "O-o-h Child". Musical Composition : will