Christie Brinkley Attends Alexa Ray Joel's Concert

Despite a heartbreaking sex scandal involving her husband and his teenage assistant earlier this summer, you can't keep Christie Brinkley down. Here, the supermodel shows just how proud she is of her eldest daughter, Alexa Ray Joel, after the 20-year-old singer's performance Thursday in New York City.

Alexa Ray, whose debut CD has been released to critical praise, performed as opening act for pop singer Teddy Geiger. Mom wasn't the only cheering: The "Piano Man" himself, dad Billy Joel, also was there. As for that dirtbag Peter Cook? We have no freaking idea where he was.