Premise: Avril Lavigne . Her breakthrough single , `` Complicated '' , peaked at number 1 in many countries around the world , as did the album Let Go . `` Complicated '' is the debut single by Canadian singer-songwriter Avril Lavigne , released in 2002 from her debut album , Let Go . It was written by Lavigne and The Matrix ( Scott Spock , Lauren Christy , and Graham Edwards ) , and produced by The Matrix .
Hypothesis: Avril Lavigne wrote the song Complicated.
Label: ENTAILMENT