Guess which Spice Girl just got engaged?

This Spice Girl is said to be planning a wedding in a castle, after dating her man for just 6 months.

Spice Girl Geri Halliwell and Formula One boss Christian Horner are reported to be engaged, after dating for just six months. The 41-year-old singer and Australia’s Got Talent judge has been photographed with her new man since around January.

A photo of the happy couple appeared on the Spice Girls’ Instagram account with the caption, “Poppy and James’s Wedding / may16 #gerihalliwell”.

Apparently the two have been friends for several years.

Horner left his partner Beverly just six months after the birth of their daughter last year. This is thought to be the reason they have kept their engagement so quiet, to avoid further scrutiny.

Now the word is they are looking for the perfect castle in which to get hitched, with the Daily Mirror reporting they could be eyeing off Castle Howard, famous for being where Brideshead Revisited was filmed.

It would be the the first marriage for Halliwell, who has an 8-year-old daughter, Bluebell Madonna Halliwell, from a previous relationship.

What do you think of the couple's plan to get married in a castle? What was your wedding venue like?

Geri Halliwell has come so far since her days as Ginger Spice. Check out these highlights from her life so far:

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Happy 40th Posh. My, how you've changed.