Is Britney Spears engaged?

Britney Spears has flashed a very engagement-looking ring to paparazzi in London.

The singer showed off her rock as she left Radio 1 yesterday, where she gave an interview to kick off the European leg of her Femme Fatale tour.

But this all looks very familiar!

Brit Brit has been spotted wearing this ringon a number of occasions – the last being only a few months ago.

Has Brit secretly gotten engaged to her boyfriend, Jason Trawick, or is this all a bit of publicity fun for the twice-divorced, 29-year-old?

According to Splash News, Jason was spotted leaving a Los Angeles jewellery store recently, but a rep for the couple denied any engagement plans.

C'mon Brit Brit, explain yourself!