Sir Rod Stewart has jokingly asked fans what football team he supports after showing them inside a Celtic-themed room in his plush mansion. 

The Hoops-daft crooner shared a photo to his 1.4 million Instagram followers showcasing the gym in his Essex home.

Walls are adorned with at least 28 scarves, over 20 framed photos and signed shirts, and a huge Celtic crest on the wall above the door. 

The Baby Jane singer wore a Celtic hoodie and green trainers in the photo, which he captioned: "Guess what football team I support."

Many fans soon saw an opportunity to joke back, with one saying: "Go Rangers."

Another added: "Hahaha, Liverpool?"

A third joked: "Partick Thistle."

A fourth asked: "Chelsea?"

It comes after we reported that the 79-year-old was confirmed for the "Legends" slot at Glastonbury in 2025.

Speaking on Instagram, he said: “After all these years, I’m proud and ready and more than able to take the stage again to pleasure and titillate my friends at Glastonbury in June. I’ll see you there!"