The Harding recently this blonde locks for a dramatic new look, dyed brown, but told the Daily Star that he was not a problem to find new.
She said: "My new brown hair is much harder to manage. Before, when I was blonde, I used to get away with going out with bed hair most of the time but sadly I can't do that, not any more."
Harding is due this year with DJ friend Tom Crane to tie the knot after getting engaged on New Year's Eve.