the grove extra Avril Lavigne

If Arvil needs mall security detail, there's always hunky Patrick Schwarzenegger!

The sassy songstress stopped by The Grove on Tuesday (in a shirt from her Abbey Dawn line) to chat with Mario Lopez, and promote her upcoming performance on America's Got Talent.

Lavigne will help kick off the live shows for Talent by performing “What the Hell” and “Smile” during the live results show, tonight.

Lavigne has been enjoying a very busy summer with her Black Star tour in South America.

What do you think of Avril's tee? Would you buy her duds?