been putting some thought into that, too. i watched to performance live, but now can't find the full performance.
what struck me was how many times scorsese got face time during it… and how very unamused he looked. in one shot labeouf was looking back at scorsese while everyone else was looking at the stage and he seemed to have this shit eating smirk… like he was amused that scorsese was butthurt about something.
scorsese and his faggy rapist brigade (deniro, pacino, pesci) looked pretty smug the whole time… so the performance reaction was of note.