Greta Gerwig's Wedding Photos: See Her & Husband Noah Baumbach at Billy Joel's Concert After Getting Married!

Billy Joel's daughters Della, 8, and Remy, 6, join him on stage to sing Jingle Bells to sold out crowd at Madison Square Garden

Greta Gerwig and Noah Baumbach Are Married-Married Now

Billy Joel Performs on Stage With Daughters Della and Remy at NYC’s Madison Square Garden