It's not a poodle perm, that's her natural hair. Apparently when she was dating Nicky Clarke (who she dumped because he was cheating on her and refused to give up the 'other woman') he didn't like her hair and insisted she straighten it! This is from the Daily Mail:-
Five months after finally dumping celebrity crimper Nicky Clarke, her on-off lover, makeover queen Kelly Hoppen has given herself a redesign.
Kelly, former stepmother of actress Sienna Miller, has ditched the straight hair-do, which became her trademark while she was dating womaniser Clarke, to return to her naturally curly locks.
And at a party at the Natural History Museum, the interior designer had a parting shot for Clark as she told me: 'I've gone back to the original me - none of this smooth stuff. I've simply stopped using straighteners. I have a new boyfriend now, who I am very happy with, and I feel more myself with my hair back the way it is naturally - curly. Nicky is history
Funny that, you can't imagine her being told what to do with her hair can you? And imagine having her as a stepmother!!