I Will Survive also frequently recalled as a symbol of female strength and as a gay anthem. In 2016, the Library of Congress deemed Gaynor's original recording to be "culturally, historically, or artistically significant" and selected it for preservation in the National Recording Registry. 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. "Substitute" appeared on the "Billboard" Bubbling Under the Hot 100 chart for four weeks in October–November 1978, peaking at No. 107. "I Will Survive" then
A-side and B-side which would quickly replace the 78 for single record releases. The term "single" came into popular use with the advent of vinyl records in the early 1950s. At first, most record labels would randomly assign which song would be an A-side and which would be a B-side. (All records have specific identifiers for each side in addition to the catalog number for the record itself; the "A" side would typically be assigned a sequentially lower number.) Under this random system, many artists had so-called "double-sided hits", where both songs on a record made one of the national sales charts (in