They used to belong in the same category as hillwalking or decorating the house: you'd wear your oldest clothes, sturdiest shoes and no make-up.

But in the past decade music festivals have slowly but surely become big business in the world of fashion.

You can thank Kate Moss for this. The self-confessed rock chick (does that make you cringe too?) is single handedly responsible for the sea of women who wear denim hotpants in Scottish weather (sunshine/showers/sunshine/showers) at festivals and beyond.

Since she began stomping around Glastonbury wearing teeny tiny shorts with massive Hunter wellies and no bra with Pete Doherty on her arm she sparked a cultural revolution in what people wear to go lie in a field for three days.

The Kate years reached the height of their frenzy in 2008 but still we can't let go of the shorts. Why?

Even at the recent Stone Roses gig in Glasgow Green women persisted on wearing them along with lashings of mascara and lipstick, despite the February-style pouring rain.

Technology can't help matters. If you know someone's going to take your picture and stick it in on Instagram there's no way you can take the risk of looking like you've been lying in a field for three days. Even when that's exactly what you have been doing. No filter is equipped for that sort of thing. Not even Lo-Fi.

I went to my first festival in 2003 when I was almost 16 - just before the phenomenon hit. I don't even remember any of my friends even changing their clothes the whole time we were there, although that could have been to do with us being shell shocked at the sights we saw in Balado. Including Oasis.

Now people spend whole weekends planning their outfits for each day of the festival and even stay in 'VIP' campsites.

There are whole sections of shops dedicated to festival fashion, including celebratory collaborations such as Topshops's line "inspired" by Kate Bosworth.

At one point, and I've been advised on this by my friend who "definitely" attended the first TITP at Strathclyde Country Park, although he may or may not remember much else, men used to chuck on combat trousers and tie a checked shirt round their waist, while women wore a simple strappy top and jeans. And everyone had a proper waterproof jacket on them. Or a fleece...

As Glastonbury gets underway I'm eager to find out what the A-list will be wearing - but more importantly what the masses have packed for their festival wardrobe. I'm praying for no more short shorts.

The irony is that the most fashion forward thing you could wear to a festival this year is what people used to throw on to paint their homes: dungarees. Good luck in the portaloo with them, though.