Chantelle HoughtonChantelle Houghton has cast off her trademark bottle-blonde locks to be a brunette when she marries Ordinary Boys’ Samuel Preston this afternoon.

The couple, who met on Celebrity Big Brother earlier this year, are set to marry at 4pm, at Dartmouth House in Mayfair, London. The couple had previously said they were marrying in a variety of different locations to protect their exclusive magazine deal and apparently didn’t tell the 45 guests the location until this morning.

The couple spent last night at the nearby Chesterfield Hotel and Chantelle spent 10 hours yesterday at hair stylist Richard Ward’s Chelsea salon, emerging with dark brown hair at the end of it.

Chantelle will wear an ivory gown, designed by Elizabeth Emanuel, for the intimate ceremony and according to the Sun, the event will be “very traditional” until they get to the reception - which will include a karaoke set.

A source told the paper: “Chantelle insisted on it. It’s a case of you can take the girl out of Essex, but you can’t take Essex out of the girl. Her family will enjoy it, they love a singsong.”