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

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

Greta Gerwig Ties the Knot with Noah Baumbach, Celebrate at Billy Joel Concert

Barbie director Greta Gerwig is married! Filmmaker, 40, tied the knot with fellow director Noah Baumbach, 54, at New York City Hall after nearly 12 years together… and celebrated at Billy Joel concert