Bob Geldof is not a man known for keeping his opinions to himself, but he might have stepped over the line when he insulted the crowd at a UK festival the other day.

Geldof and his band The Boomtown Rats were playing the Brentwood Festival in Essex last weekend, sharing a bill with the likes of Spandau Ballet's Tony Hadley and '80s popsters ABC, when he decided to take the crowd to task for not dressing as 'mega' as him and his bandmates.

According to The Mirror, Geldof started swearing as soon as the band walked on stage, telling the crowd: "We don't do Abba. We don't do Robbie f*****g Williams. Brentwood, we are the Boomtown Rats."

He then said: "We are mega. And you are Brentwood. How do we know that you are Brentwood and we are mega? Because I am wearing a f**k off pretend snakeskin suit and [other band members] are wearing f**k off cowboy shirts even though they live in London."

He added, referring to one of his bandmates: "Pete Briquette, who you will remember as a stout, handsome young man from Ballyjamesduff, is wearing a f**k off purple suit with an elasticated waistband so that when he gets even f*****g fatter you won't notice.

On the other hand Brentwood, you are wearing wall to wall f*****g Primark. This is a rock and roll festival. When you come to a rock and roll festival you dress for a rock and roll festival. You can never be too careful."

Someone might want to tell the Dubliner that ABC and Tony Hadley are not most peoples' ideas of 'rock and roll', for starters.

Watch his rant here: