Getting hitched Kels?Kelly's ring fingerRing-a-ding-ding...

Just what have we spied upon Kelly Osbourne's finger?

Is that an engagement ring, Kel?Kelly OsbourneKelly Osbourne

This would be a turn up for the books...

We didn't know you were in a marrying kind of mood.

But that said you have been looking mightily chipper with your beau on your arm.

Kelly Osbourne was spotted strolling around London yesterday sporting a very visible rock on her wedding finger.

She's only a young pup at 23 but Kel and her 18-year-old boyf, Luke Worrell, who is a model and a BMX bike rider, seem head over heels.

And he's already met the mother-in-law, Sharon, when Kel did the intros in LA.

Kelly was spotted wearing the ring yesterday after returning from a jolly with her boyf - or should we say fiance? - in New York.

... We wonder what kind of wedding the Osbournes would throw for their Kel - could you imagine Ozzy's father of the bride speech?

Oh how the mind boggles.