Who: Hypnotic Brass Ensemble.

Where and when: Park stage, 3.15pm.

Dress code: Pristine blue jeans, spanking white trainers and black singlets (to be removed at point of overheating)

What happened: A nine-piece brass band sounds like a tough sell to an already booze-addled, sun-drenched crowd, but Hypnotic Brass Ensemble aren't your average wind section. Making dancing look positively effortless while playing a sousaphone is no mean feat, neither is imbuing a sense of devilish fun into an audience with just the occasional rap or yell of "boo-ya!". The band's secret weapon, though, is their drummer, proving that this is most definitely a band that does more than it says on the tin.

Who's watching: A motley array of inebriated, well-turned-out and affable festivalgoers.

High point: This writer isn't usually one to enjoy being goaded into chanting along to such inanities as "Hell yeah!", less so when those on stage divide the crowd and get them to cheer in competition with one another. But being told that you're being taught some "Chicago talk" and being asked to shout "fo' sho'!" while having sections of the audience split into "elites" and "supremes" is nothing if not original. In fact, the crowd-participation shtick worked wonders in getting everyone in the mood for the aptly named Party Started.

Low point: "You all know Tony Allen right?" asked the band, and even though it became evident that this, in fact, was not the case, those who were familiar with the Afrobeat legend were no doubt disappointed to hear that he "taught Emmanuel everything he knows". As opposed to actually making an appearance, you see.

In a tweet: The name doesn't lie: they are hypnotic, but there's much more to this nine-piece than just a brass ensemble.