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 single became hits. Occasionally double-A-sided singles were released with each side targeting a different market. During the late 1970s, for example, Dolly Parton released a number of double-A-sided singles, in which one side was released to pop radio, and the other side to country, including "Two Doors Down"/"It's All Wrong, But It's All Right" and "Baby I'm Burning"/"I Really Got the Feeling". In 1978, the Bee Gees also used this method when they released "Too Much Heaven" for the pop market and the flip side, "Rest Your Love on Me", which was aimed toward country stations. Many artists continue to