Avril Lavigne had a number one single.
Avril Lavigne . Let Go made Lavigne the youngest female soloist to reach number 1 in the UK . Her second studio album , Under My Skin , was released in May 2004 and was her first album to peak at number 1 on the US Billboard 200 , eventually selling more than 12 million copies worldwide . Lavigne has scored six number-one singles worldwide , including `` Complicated '' , `` Sk8er Boi '' , `` I 'm with You '' , `` My Happy Ending '' , `` Nobody 's Home '' , and `` Girlfriend '' .