"Sk8er Boi" is a song by Avril Lavigne, and was the second single from her debut album, Let Go (2002). It was written by Avril Lavigne and The Matrix (Scott Spock, Lauren Christy, and Graham Edwards), and produced by The Matrix. Released in 2002, the single reached number ten on the United States Billboard Hot 100 (becoming Lavigne's second top ten single there), number eight in the United Kingdom, number three in Australia, number thirteen in Canada and number one in Spain, becoming one of her most successful songs to date.