Avril Ramona Lavigne was born to a French-born father, John, and a Franco-Ontarian mother, Judy, in Belleville, Ontario, Canada on September 27, 1984. Her father named her Avril after the month "April" in French. She has an older brother, Matthew, and a younger sister, Michelle. Lavigne's mother was the first to spot young Lavigne's talent. At the age of two, Lavigne began singing church songs along with her mother. The family moved to Napanee, Ontario, when Lavigne was five years old.
In 1998, Lavigne won a competition to sing with fellow Canadian singer Shania Twain on her first major concert tour. She appeared alongside Twain at her concert in Ottawa, appearing on stage to sing "What Made You Say That". She was discovered by her first professional manager, Cliff Fabri, while singing country covers at a Chapters bookstore in Kingston, Ontario. During a performance with the Lennox Community Theatre, Lavigne was spotted by local folk singer Steve Medd, who invited her to contribute vocals on his song, "Touch the Sky", for his 1999 album, Quinte Spirit. She also sang on "Temple of Life" and "Two Rivers" for his follow up 2000 album, My Window to You.