"Water Under the Bridge" is a song by English singer Adele from her third studio album 25 (2015). Adele wrote the song with its producer, Greg Kurstin. Columbia Records released the track as the album's fourth single on 14 November 2016. A mid-tempo pop, soul and soft rock song, "Water Under the Bridge" incorporates influences of 1980s music, R&B, and a gospel choir over guitars and snare drums. Inspired by her relationship with charity founder Simon Konecki, who Adele dated for seven years and married in 2018, the song speaks of forgiveness and details the crucial point in a courtship of determining whether one's partner is willing to put in the work to make it succeed.

Adele Laurie Blue Adkins, known mononymously as Adele, is an English singer-songwriter. She is known for her mezzo-soprano vocals and sentimental songwriting. Adele has received numerous accolades including 16 Grammy Awards, 12 Brit Awards, an Academy Award, a Primetime Emmy Award, and a Golden Globe Award.