Avril Lavigne is reminiscing on her early days ... "I was getting out of high school and I just wanted to rock out," said the 37-year-old punk-edged pop star. "I want loud guitars, I want live ...

Avril Lavigne finally kicked off her long-awaited Greatest Hits Tour on May 22 in Vancouver, presenting a collection of some of her best remembered hits over her two-decade long career.