The biggest Harry Potter shrine? It’s in Liam Payne’s back GARDEN…

What would you do if you were a multi-millionaire?

Buy your dream house? Probably. Travel around the world? Yup, that's a contender too.

What about buying a novelty flying car to put in your garden? Well, if you're Liam Payne that's exactly how you'd be spending your hard-earned euro.

The One Direction singer revealed on UK radio this week that, as a self-confessed Harry Potter nerd, he actually has one VERY important piece of memorabilia from the film in his house.

"I bought the Harry Potter car and I put it in my garden," he told Nick Grimshaw on BBC Radio 1.

"You know the blue car, the flying one? I bought one because I’m a bit of a geek."

Harry Potter fans will recall the Weasley's enchanted Ford Anglia that Harry and Ron use to fly to Hogwarts in their second year, after failing to get through the Platform 9 3/4 entrance at King's Cross Station.

Liam now owns one of just a few "enchanted" Fords used during the filming of Harry Potter and the Chamber of Secrets back in 2002.

Another one can be seen on the Warner Brothers Studio Tour in London, and a third lives at the National Motor Museum in Beaulieu, Hampshire.

Of course, the 1D singer's Harry Potter obsession doesn't end with movie memorabilia. The star also had his 22nd birthday cake custom-designed to look like a stack of Hogwarts books.

And if you were wondering what house Liam would be in if he HAD gotten that elusive letter from Hogwarts way back when, it would be Gryffindor.

"I did the test on the website," he told Nick.

"My friend got Hufflepuff and I got Gryffindor. He was so annoyed."

We would be too, in fairness…