Osbourne announces engagement on Facebook

Kelly Osbourne has fuelled speculation that she is to wed boyfriend Luke Worrall by changing her Facebook status.

The presenter switched her relationship status to 'engaged' on the social networking site over the weekend.

Osbourne first sparked engagement rumours when she was spotted wearing a ring last September. Recent reports have suggested that the couple are planning a Las Vegas wedding.

Her Facebook wall has been inundated with messages of congratulations from her famous friends, according to the Metro.