Michael Jeffrey

After the club was closed due to fire regulations, both establishments burned down. Jeffery then opened the Club A’Gogo in partnership with Ray Grehan, sales manager for the Automaticket company. The Club A'Gogo became Newcastle's most celebrated venue, particularly after it was the subject of a best-selling song by The Animals, who were the venue's house band (to be replaced by The Junco Partners when The Animals became an international act). The club hosted concerts by Captain Beefheart, Cream, Fleetwood Mac, The Graham Bond Organisation, Howlin’ Wolf, Jeff Beck, Jimi Hendrix, John Lee Hooker, John Mayall & the Bluesbreakers, Pink Floyd, The Rolling Stones, The Who and The Yardbirds among others. It attracted younger Newcastle clientele such as Sting and Bryan Ferry.

In October 2006 a $15 million auction took place of items of Jeffery's estate including the rights to many of Jimi Hendrix's hits including "Purple Haze" and "Voodoo Child (Slight Return)". Experience Hendrix, a company formed and owned by Hendrix's family, have said they will prove they own the titles to these songs and that they intend to sue.

He died in 1973 in a mid-air collision over Nantes, France, whilst aboard an Iberia Airlines DC-9.

Jeffery died in a mid-air collision (1973 Nantes Mid-Air Collision) over Nantes, France on 5 March 1973.

Hendrix was pronounced dead on 18 September 1970 at St. Mary Abbotts Hospital, Kensington, London. In May 2009, the UK media reported claims by James "Tappy" Wright that Jeffery had murdered him. Wright, who was a roadie for The Animals in the 1960s, had just written a book, in which he claimed he was with Jeffery in 1971, one year after Hendrix's death, and Jeffery confessed to having murdered Hendrix by plying him with pills and a bottle of wine in order to kill him and claim on the guitarist's life insurance. At the time of Hendrix's death, the coroner recorded an "open verdict," stating that the cause was "barbiturate intoxication and inhalation of vomit". The pathologist who did the autopsy on Hendrix, Donald Teare, reported a low blood alcohol level. "Jimi Hendrix was not murdered," says Bob Levine, who was the US manager of the late guitarist at the time of his death in 1970. "Despite the allegations that have recently been made, I need to set the record straight once and for all. Jimi died an accidental death, but he definitely wasn't murdered – not by Michael Jeffery, his UK manager, and certainly not by anybody connected to him. The whole thing is one giant lie."

In 1968, Kevin Deverich took over as manager for Eric Burdon and the new Animals when they became unhappy over money that was promised to them by Jeffery.

Frank Michael Jeffery (13 March 1933, Peckham, South London – 5 March 1973) was an English music business manager of the 1960s who is best known for his management of The Animals and Jimi Hendrix, whom he co-managed for a time with former Animals bassist Chas Chandler. A former associate of noted English pop impresario Don Arden, Jeffery was and remains a controversial figure.