Earlier this week, it was somewhat surprisingly revealed that Jackson 5 star Jermaine Jackson is a Sheffield Wednesday fan.
The brother of Michael, who has more recently been turning out on reality TV, responded to a tweet in which he confirmed that he was an Owl (and also had a thing for QPR).
Jackson joins an illustrious list of celebrities who claim allegiance to Wednesday, including Arctic Monkeys frontman Alex Turner and of course, Dick from Dick and Dom.
Not to be outdone, there are many, many famous Blades too, none more so than Sean Bean, plus sporting heroes Jess Enis, Joe Root and Kell Brook.
Matching Jackson in the bizarre stakes is Red Hot Chilli Peppers bass player Flea, who once rocked Sheffield Arena with a rendition of the Greasy Chip Butty song (see video for proof).
Here's a list of famous Blades and Owls...
Sheffield United Fans:
Sean Bean - Hollywood Actor
Jessica Ennis - Olympic and world champion Athlete
Joe Elliott - Def Leppard lead singer
Joe Root - England cricketer
Kell Brook - World champion boxer
Michael Palin - Monty Python star, writer and television presenter
Michael "Flea" Balzary - Musician with the Red Hot Chilli Peppers
Juan Sebastian Veron - Former Argentina international footballer
Paul Heaton - Musician with The Beautiful South and The Housemartins
Alex Hammond - TV presenter
Charlie Webster - TV presenter
Anna Walker - TV presenter
Harry Gration - TV presenter
Mark 'The Beast' Labbett - Chaser from the TV game show The Chase
Paul Goodison - Olympic Laser Class Sailing gold medalist
Richard Caborn - Politician
Toddla T - Musician
Antony Genn - Former member of Pulp
Danny Blandy - Spector drummer
John Rawling - Sports commentator
G. P. Taylor - Author
Sheffield Wednesday Fans:
The Arctic Monkeys - Sheffield rock band
Rick Savage - Bassist of Def Leppard
Michael Vaughan - Former England cricket captain
Gary Cahill - England and Chelsea football
Paul Carrack - Musician and former member of Ace, Squeeze, Mike + The Mechanics, and Roxy Music
Sebastian Coe - English former athlete and chairman of the London Organising Committee for the Olympic Games.
Jarvis Cocker - Lead singer of Pulp
Jermaine Jackson - Musician
Richard Hawley - Musician
Jon McClure - Lead singer of Reverend and the Makers
Clinton Woods - Former World champion boxer
David Blunkett - Politician
Rivers Cuomo - Lead singer of rock band Weezer
David Garrido - TV Presenter
Roy Hattersley - Politician
Katy Livingston - Olympic modern pentathlete
Nick Matthew - 3x World squash champion
Milburn - Sheffield rock band
Johnny Nelson - Former World champion boxer
Martyn Ware - Member of Heaven 17 & The Human League
Jonny Greenwood - Radiohead guitarist
Thomas Craig - British actor
Richard McCourt - Dick from comic duo Dick and Dom
Joe Ashton OBE - Politician
Who's fans are the most famous? Let us know what you think