Ageless Supermodel Christie Brinkley Takes Chicago Musical To London

The ageless mother looked amazing in a strapless nude Zuhair Murad mini dress with black sequins and giant bow sash while Alexa wore a floral dress with a puffball skirt for her mom’s big night.

Brinkley, who inspired Billy Joel's 1983 hit Uptown Girl, said of her transition into stage roles: “Billy always used to say I could do a Broadway musical.”

The model began her career in the 1970s and became one of the most famous cover girls in the world – she also appeared appeared on the big screen opposite Chevy Chase in the 1983 film National Lampoon's Vacation.

More recently she made a guest appearance in TV hit Ugly Betty before making her successful transition to the stage.

Stepping into the shoes of Brooke Shields, Ashlee Simpson and Michelle Williams - who all previously played Roxie Hart - was a big challenge for the mother of three.

But before she took the role in April she said: “I have been a boxing photograph for Don King, I’ve travelled with a rock band, climbed the Himalayas with my son and chanted with the monks under the stars.