Released as a single in November 1974, "Free Bird" bowed at #87 on the Hot 100 on the 23rd and became the band's second Top 40 hit in early 1975, where it peaked at No. 19. A live version of the song also reached the Billboard Hot 100 chart in 1977, peaking at No. 38. "Free Bird" also achieved the No. 3 spot on Guitar World's 100 Greatest Guitar Solos.
It is used as a finale by Lynyrd Skynyrd during their live performances and is their longest song, often going well over 14 minutes when played live. It is considered to be Lynyrd Skynyrd's signature song.(Wikipedia)
Allen Collins's girlfriend, Kathy, whom he later married, asked him, "If I leave here tomorrow, would you still remember me?" Collins noted the question and it eventually became the opening line of "Free Bird".(Wikipedia)