Phoebe's finally had her ears pierced - Does anyone know when she got them done?

Looking at some recent pictures of Phoebe from August this year (2010), I noticed that Phoebe now has pierced ears. If you look at older pictures of her, from 2008 etc, you can see that she didn't have them done back then - Even on really HQ pictures, there's no sign of any holes in her ears. So I was just wondering if anyone knew exactly when she got them done?

And, in case you doubt that she really does have them done now, here's a picture from the Tomorrow, When The War Began premiere in Sydney on August 9th, where you can see the earring hook actually going through the hole in her earlobe: