Avril Lavigne

Avril LavigneLet Go made Lavigne the youngest female soloist to reach #1 in the UK, and the album was certified four-times platinum by the Recording Industry Association of America. By 2009, over 16 million copies had been sold worldwide. Her breakthrough single, "Complicated", peaked at #1 in many countries around the world, as did the album Let Go. Her second album, Under My Skin, was released