Singer is papped after her DJ set at the Monarch pub

Amy Winehouse has been photographed with a mysterious white substance up her nose.

The singer, 24, was leaving the Monarch pub in Camden with her bodyguard when snappers noticed the powder.

She was launching her own night Snakehips At The Monarch.

She emerged at 2am and attempted to hide behind a cardboard box as she got into a cab.

And a man with her was carrying a lamp.

SEE PICS: Amy Winehouse snapped with white stuff in her nose>>

Alison Adey