Saturday night VH1 Save The Music kicked off VMA weekend at its third annual HAMPTONS LIVE benefit with headliner Fifth Harmony who performed an electric set of hits including summer smash "Work From Home," "All In My Head (Flex)" and "Worth It," while DJ Cassidy spun tunes that kept the crowd dancing the night away under the stars. Guests including model Jessica White, designer Michael Costello, actress and singer Laura Marano, Real Housewives of New York and Save The Music Host Committee member Ramona Singer, actor Antoine Harris, Co-CEO of Sun Capital Partners, Inc. Marc Leder, and football star Dale Moss joined event co-chairs and hosts Julie and Billy Macklowe at their home for the event.