1968, A free concert was held in London's Hyde Park with Pink Floyd, Jethro Tull, Tyrannosaurus Rex and Roy Harper. This afternoon concert was the first free festival to be held in Hyde Park. The concert was held to coincide with the release of Pink Floyd's second album, A Saucerful of Secrets. 1968, The Jeff Beck Group appeared at the Boston Tea Party, Boston, … [Read more...] about Today in Rock History – June 29