What is avril lavigne sk8er boi?

"Sk8er Boi" is a song by Canadian singer Avril Lavigne, released in 2002 as the second single from her debut album "Let Go". The song tells the story of a young girl who falls in love with a skateboarder, but ultimately chooses popularity over him. The song was a commercial success, reaching the top 10 in multiple countries and becoming one of Lavigne's signature songs. "Sk8er Boi" helped establish Avril Lavigne as a prominent figure in the pop-punk music scene of the early 2000s.