Here's the Dizzee and Sugarhill Gang video at last. Notice how he seems in a bit of a daze at the start, probably counting all the money in his head that he's no doubt getting for this show and thinking about how he'll spend it. Then he checks back on himself and realises people are watching so he does a few finger points. Big.
And as a bonus, here's a video of Dizzee at some Nike event pulling up in a Lambo and then sprinting (all the way to the bank, presumably).