OMG! AMY WINEHOUSE NODS OUT ON STAGE, THEN JUST WALKS OFF!

Amy Winehouse walks out in the middle of her concert
Amy was attempting to perform "Valerie" when suddenly she stopped singing, stared at the ground for 30 seconds and walked off stage -- leaving her backup singers looking as confused as she does on a regular basis.

Her reps blamed the rain, citing "technical difficulties."
We blame it on the dope!