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FIND OUT MORE ON ELLE COLLECTIVE Her appearance at last night's Met Gala marked Ross's fifth time attending the annual fundraising event for The Costume Institute

The ultimate show-stopper, "SIREN" is a glittering, expertly ruched form fit corset mermaid gown designed to accentuate the body with crystal encrusted bustier bodice and asymmetrical ruffle peplum over feathered tulle mermaid skirt

The relaxed, oversized fit and side zipper make it easy to wear all day and the gingham print photographs beautifully everywhere from Nantucket to the Amalfi Coast

Adding a final dash of dramatic flair, a small train trails out behind you