A galaxy of celebrities including Renee Zellweger and Alec Baldwin turned out to watch Billy Joel perform an exclusive concert in the Hamptons, New York on Saturday (04Aug07). Piano Man Joel played the $4,000 (GBP2,000)-per-ticket Social @ Ross marquee gig in front of a host of stars. One celebrity guest, Mary-Kate Olsen was so excited at watching Joel's show, she left the VIP section to dance, fists pumping, directly in front of the stage as the veteran rocker played Movin' Out.