Prince William is an Aston Villa fan, so is Prime Minister David Cameron (we think) - but does the Queen have a preferred football team?
Labour leader Jeremy Corbyn thinks she does after jokingly claiming Her Majesty is "privately a Gooner" - a nickname for Arsenal supporters.
Speaking as MPs paid tribute to the Queen on her 90th birthday, Corbyn recalled the monarch's cancelled visit to Arsenal's ground and how it resulted in the Gunners squad being invited to Buckingham Palace for tea.
The MP for Islington North told the Commons: "In 2006, she was due to open the new Emirates Stadium in my constituency but had to pull out due to an injury.
"Unfortunately Mr Speaker, this is a fate that has afflicted far too many of Arsenal's squad in subsequent years. So we must congratulate her on her prescience.
"(Catherine West, Labour MP for Hornsey and Wood Green) was then the leader of Islington Council and as the Queen could not attend the opening they were invited to Buckingham Palace and she accompanied the whole squad to Buckingham Palace to meet the Queen.
"Now we know the Queen is absolutely above politics. She may be above football too, but many locals harbour this quite secret view that she's actually privately a Gooner."