 The Beatles, Shirley Bassey and Lord Roy Thompson were amongst the many celebrities who attended his parties.Bloom was the first commercial sponsor in May 1963 of the Royal Windsor Horse Show, and on 18 March 1964, in the House of Lords, Lord Balfour of Inchrye called then Prime Minister Harold Wilson "a real super salesman, the John Bloom of political life".After his business problems, little was heard of Bloom for some time.