I dunno about Bluegrass being "hated", but some of the most enjoyable music I can remember from those 3 Days at Woodstock was old timey with the Hog Farmers after we'd closed down passing out the free food.

I think hippies back in England tended to be a different variety from Americans thiough - not so much butterflies as squirrels, (turning into badgers as they grew older).
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On tonight's TV:

The Dark Side of Hippos... a fat and cuddly vegetarian or a fearsome and aggressive killer? This eye-opening documentary special reveals a shocking side to these almost cartoon-like creatures...

Violence is central to hippo society – female hippos are hugely protective mothers as males often kill their young, and with only one in 10 males ever getting the chance to mate, fights between males are often to the death. The programme features survivors of hippo attacks and investigates what brings out the dark side of hippos.