This is the only flash mob I've ever liked.
The spot ran during the 2012 Super Bowl, but only in Canada.
Though the framing was heavy-handed (to be expected when the "King of Beers" is involved), the commercial was better than all the American Super Bowl crap.
And yes, I know Improv Everywhere did the idea with Little Leaguers, but this stunt is better, simply because these men have no dreams of going pro.
Ad agency: Anomaly, NYC.