"Fly, Eagles Fly" is the official fight song for the Philadelphia Eagles, serving as a key cultural anthem played at Lincoln Financial Field since its revival in the late 1990s. The song, which features lyrics celebrating the team's drive for victory, was originally written in the 1950s but gained its iconic, high-tempo form with the famous "E-A-G-L-E-S" chant later. Quick history of the Eagles fight song, 'Fly, Eagles Fly'