Amy Winehouse Gives Disastrous Performance In Belgrade, Gets Booed Off Stage

This isn't exactly the kind of Father's Day Amy Winehouse's dad was hoping for.
The troubled singer gave a DI-SASTROUS performance in Belgrade, Serbia on Saturday, which had the audience booing her off stage! Amy was seen stumbling across stage, forgetting lyrics, and even going so far as moaning into the mic, which she later drops, and then having to have her backup singer finish the song for her.
Kicking off her European tour, critics called her performance "the worst [concert] in the history of Belgrade."
Are we even surprised?
Yes and no. Amy had just finished a week in rehab and her people were optimistic she was ready and willing to continue on the right track. Alcohol and drugs were banned from her tour, but it seems Amy still got a hold of a little drinky-drinky because after watching the (http://perezhilton.com/2011-06-19-amy-winehouse-gives-disastrous-performance-in-belgrade-serbia) videos, it's very obvious that Amy is out of it.
Check out her "performance". It's pretty hard to watch.