Christie Brinkley and her daughter, Alexa Rae Joel

Christie Brinkley (left) and her daughter, Alexa Rae Joel, go all out on the red carpet before the Princess Grace Foundation Gala on November 2, 2006. This was held at Cipriani, a fancy restaurant in New York City. Alexa Rae Joel is Brinkley's daughter with her former husband, the singer Billy Joel. Christie Brinkley was born in 1954, and Alexa Rae Joel was born in 1985, so they turned 52 and 21 the year this photo was taken. The Princess Grace Foundation, per its website, is dedicated to "elevating extraordinary emerging artists in theater, dance and film through career-advancing grants."