The ‘American Idol’ Guest Judge Report Card: Avril Lavigne

After every episode, we assess how American Idol's guest judges have fared. Towards the end, we'll see if they did Paula Abdul's old slot justice. Or the show justice. Or Simon Cowell's soon-to-be-vacated slot justice. You get the idea.

Name: Avril Lavigne
Best known as: Grammy-nominated pop-punker with a taste for complicated boys
Audition city: Los Angeles