I did not go to the concert but word is that the Black Eyed Peas were already an hour late for the show. They said they were "stuck in traffic" but the fact of the matter is they were all hammered.
These pics that have been posted can be found with copyright sources. Its true that Fergie was more than tipsy and let it out. During the show she actually went to an un-lit corner and did her thang and then came back out and acted like nothing happend.
Thats the way to set examples for the kids.