Lavigne broke a record set by Natalie Imbruglia's "Torn" when "Complicated" held the number one spot on the Adult Top 40 chart for 16 weeks in a row.
"Complicated" is a song about how people can feign or pretend in front of others.
"Complicated" also ranked at #197 in Blender magazine's "The 500 Greatest Songs Since You Were Born".
"Complicated" is the debut single by Canadian singer-songwriter Avril Lavigne, released in 2002 from her debut album, Let Go.
The song was written by Lavigne and The Matrix (Scott Spock, Lauren Christy, and Graham Edwards), and produced by The Matrix.