"Monday, Monday" is a 1966 song written by John Phillips and recorded by The Mamas & the Papas for their 1966 album If You Can Believe Your Eyes and Ears. It was the group's only number one hit on the U.S. Billboard Hot 100.
This song includes a false ending, when there is a pause before the coda of the song, and goes up a half note for the bridges and refrains of the song.
On March 2, 1967, The Mamas & the Papas won a Grammy Award for Best Pop Performance by a Duo or Group with Vocal for this song.