What key does Avril lavigne sing in?

Avril Lavigne often sings in the key of C major and G major, particularly in her popular songs. However, her music features a variety of keys depending on the specific track and its arrangement. For example, her hit "Complicated" is in A major, while "Sk8er Boi" is in D major. Overall, her vocal range and the keys she uses contribute to her distinctive pop-punk sound.