Who will host the Brit Awards, as Michael Buble takes time off for his ill son?

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With only five weeks to go, it looks like the Brit Awards have no host.

Canadian crooner Michael Buble was due to present - but that's been in doubt since his three-year-old son Noah was diagnosed with cancer last year.

At the time, the distraught singer cancelled all future engagements, saying he was determined to focus on caring for his eldest child. 

It was hoped he'd be able to return for the Brit Awards, but media reports are suggesting he's pulled out for good - and understandably so.

So, who could take the helm at the O2 Arena on 22 February?