"I Will Survive" is a song first performed by Gloria Gaynor, released in October 1978.
It was written by Freddie Perren and Dino Fekaris.
A top-selling song after its initial release, it has remained a popular disco anthem, certified as double platinum by the RIAA.
Originally released as the B-side to a cover version of the Righteous Brothers song "Substitute", "I Will Survive" became a worldwide hit for Gaynor when disc jockeys played that side of the record instead.
New copies of the record were eventually pressed with "I Will Survive" as the A-side. ("Substitute" itself peaked at number 107 on Billboard's Bubbling Under Hot 100Singles chart.)