Avril Lavigne is a Canadian singer-songwriter and actress. She began her career in the music industry as a teenager, releasing her debut album 'Let Go' in 2002. Lavigne has sold more than 40 million albums and over 50 million singles worldwide, making her one of the most successful Canadian artists of all time. She is known for her punk-pop sound and her hit singles such as 'COMPLICATED', 'Sk8er Boi', and 'GIRLFRIEND'.